1. Idlewild
2. Cut Copy
3. Nine Inch Nails
4. Symposium
5. Pixies
6. Sex Pistols
7. Sigur Ros
8. The National
9. Youthmovies
10. Jeniferever
11. REEF (first concert!)
12. Cable
13. George Pringle
14. The Stills
15. Metric
16. Emily Haines
17. Martha Wainwright
18. Bloc Party
19. Kaiser Chiefs
20. Emmy the Great
21. Bat for Lashes
22. Deftones
23. I Was a Cub Scout
24. Nick Cave
25. Catherine AD
26. Rolo Tomassi
27. M83
28. The Rapture
29. No Age
30. Silverchair
31. Simply Red
32. PJ Harvey
33. Andrew Bird
34. Arab Strap
35. Radiohead
36. Bright Eyes
37. Yeah Yeah Yeahs
38. Ash
39. Cooper Temple Clause
40. 'A'
41. ...and you will know us by the trail of dead
42. At the Drive-in
43. Blur
44. Friendly Fires
45. Oasis
46. Foals
47. Elbow
48. Blood Red Shoes
49. Broken Social Scene
50. Cat Power
51. The Veils
52. Dan Deacon
53. The Shins
54. M.Ward
55. Metallica
56. Patrick Wolf
57. Feist
58. The Kills
59. The Maccabees
60. Manic Street Preachers
61. Beirut
62. Jamie T
63. The Cribs
64. Redjetson
65. Adam Gnade
66. Crystal Castles
67. Razorlight
68. Data.Select.Party
69. Weezer
70. Spiritualized
71. Blood Brothers
72. The Icarus Line
73. Pretty Girls Make Graves
74. Laura Marling
75. Forward, Russia
76. Incubus
77. Foo Fighters
78. The Dandy Warhols
79. Mogwai
80. Komakino
81. Joanna Newsom
82. PHEONIX
83. Health
84. Less Than Jake
85. [spunge]
86. jj72
87. Muse
88. Panic at the Disco
89. Interpol
90. dEUS
91. Mansun
92. Regina Spektor
93. LCD Soundsystem
94. These New Puritans
95. Bjork
96. Justice
97. Tv on the Radio
98. The Koreans
99. Mercury Rev
100. Les Incompetents

And being a smartarse, here are the 320 acts that technology says I've seen - although I'd wager I've seen about 200 acts a year, every year, for the past 11 years (things like SXSW and most festivals I end up seeing 50 acts a pop, so it soon adds up) http://www.songkick.com/users/seaninsound/