Some of the earlier ones I'm not sure of dates, venues, etc.
New Orleans, LA - 2000?
Oleander
Fuel
3 Doors Down
Harvest - 2001? - Slidell, LA
Twiceborn - Baton Rouge hXc
Ripped up Heart - Slidell hXc
Dead to Life - nearby hxc
A.S.A.P. - Slidell pop-punk/worship/rock
New Orleans, LA
Third Day
Loyola University, New Orleans, LA
Loyola Faculty Jazz band, including:
rex richardson
Johnny Vidacovich
John Mahoney
part of
Astral Project
several others
Art Official Tour - 2002? - Covington, LA
Earthsuit
Beanbag
.rod laver
11th Hour tour - May? 2002 - Meridian, MS
Jennifer Knapp
Jars of Clay
festival con dios - 2003 - Houston, TX
KJ-52
Matthew West
FM Static
Sky Harbor
Plus One
Seven Places
Sanctus Real
Thousand Foot Krutch
Kutless
Newsboys
April 22, 2005 - jazz fest 2005 - New Orleans, LA
Cowboy Mouth
Sonny Landreth
Wilco
several others
August 19, 2005 - Common Grounds - Gainesville, FL
Morningbell - Gainesville indie poprock
Team Mascot - Gainesville indie rock
Oh No! And The Tiger Pit - Gainesville indie rock
Aug 20, 2005 - The Atlantic - Gainesville, FL
Girls On Film - Tallahasse new wave
Man and Machines - nearby industrial
Yip-Yip - winter park IDM (getting to be reasonably famous I think)
Aug 23 - Common Grounds - Gainesville, FL
Dear And Glorious Physician - gainesville indie rock
Sep 8, 2005 - Orange and Brew - Gainesville, FL
Dear And Glorious Physician
Sep 9, 2005 - Hyde and Zeke's Records - Gainesville, FL
Inuit Jargon - gainesville - oh jeeze i don't know where to start
Sep 22 - Orange and Brew - Gainesville, FL
Adam's Out - gainesville hard rock
Select Start - gainesville nintendo music
Sep 26 - Common Grounds - Gainesville, FL
Prefuse 73
DJ Nobody
Textual - side project of Dave Lebleu of The Mercury Program
Sep 30 - Common Grounds - Gainesville, FL
Old Crow Medicine Show
Oct 2 - Common Grounds - Gainesville, FL
Minus the Bear
HEADPHONES
Oct 22 - Atlantic - Gainesville, FL
Swayze - gainesville folkrock
Morningbell
Oct 29 - Tim and Terry's - Gainesville, FL
Dopamean - gainesville (i think), prog speed metal
Nim Sum - gainesville "angular groove oriented math rock"
Nov 3 - Orange and Brew - Gainesville, FL
The Most - gainesville indie pop
Nov 10 - The Shamrock - Gainesville, FL
Morningbell
Inuit Jargon
Nov 14 - Common Grounds - Gainesville, FL
Deerhoof
Death of a Party
Fun Killer
Nov 30 - The Side Bar - Gainesville, FL
Building the State - gainesville post-rockish indie
Bracelet - gainesville rock
The Silent Press - i don't remember
Nim Sum
Dec 3 - The Shamrock - Gainesville, FL
Nim Sum
Dec 5 - Common Grounds - Gainesville, FL
Wheatus
midstates
Big City Dreams
Dec 8 - Common Grounds - Gainesville, FL
The Mercury Program
Textual
Brazil
Dec 15 - The Shamrock - Gainesville, FL
Robots In Antarctica - gainesville experimental
Nim Sum
Jan 13 - The Side Bar - Gainesville, FL
Morningbell
The Most
Inuit Jargon
Jan 18 - Common Grounds - Gainesville, FL
Loko Phylum
Jan 19 - Common Grounds - Gainesville, FL
Kind of Like Spitting
Swayze
Warren Hixson - gainesville... folk sadcore experimental post-rock stoner shoegaze?
Jan 21 - Atlantic - Gainesville, FL
March to May - gainesville indie dance pop
Alphabet City - gainesville indie dance pop
...And This Is My Odyssey - gainesville indie pop
Feb 15 - UF - Rion Ballroom - Gainesville, FL
of Montreal
Feb 17 - Common Grounds - Gainesville, FL
Papercranes - gainesville rock
Stock Market Crash
Edan Archer
Mar 21 - Civic Media Center - Gainesville, FL
Monolith - gainesville free jazz/experimental
Warren Hixon
Mar 24 - Tim and Terry's - Gainesville, FL
Nim Sum
Liquid Limbs - gainesville rock
Mar 26 - UF - BandShell - Gainesville, FL
Hot Hot Heat
velveteen pink - gainesville funk
The Most
Apr 11 - 1982 - Gainesville, FL
Umoja Orchestra - gainesville world
The Why Nots - don't remember
Barnacles - don't remember
Instant classic - don't remember
Apr 14 - Atlantic - Gainesville, FL
DJ Cadaver Junky - gainesville electronic
On*tic - visual idm
Textual
DCLA 2006 - Washington, DC
Kendall Payne
Bethany Dillon
Jeremy Camp
tobyMac
David Crowder Band
Alot of them are local to Gainesville, I tried to explain so you can get the gist at least. Anything without an explanation is someone famous you should know (haha). I think I got everything save a few Jazz shows I went to for History of Jazz class that I can't remember.
Update:
Common Grounds:
Die Hoffhung,
Young Livers,
An Albatross
The Atlantic:
Oh No! And The Tiger Pit,
Morningbell,
velveteen pink
Common Grounds:
Criteria,
Smoking Popes
Common Grounds:
Papercranes
CMC:
Applied Communication,
Emperor X
Weirdstock! @ Tim and Terry's:
The Umoja Orchestra,
Adam's Out,
Jared Whitham,
A Woman's Weapon
Common Grounds:
Pet Monument,
M. Coast,
Elf Power
Club Red:
Disembodied Voices,
uh oh! spades,
Yip Yip,
Common Grounds:
Swearing At Motorists,
Holopaw
Reitz Union Ampetheatre - Nov 03, 2006:
Pony Up,
Tilly and the Wall
Reitz Union Ballroom:
The Cops,
Jeremy Enigk,
Cursive
(I moved home, so these are mostly New Orleans)
The Republic - March 09, 2007:
Eluvium,
Explosions in the Sky