I just spent a while working mine out (slow day)

(NB these are just my favourites, i'm not claiming these the the best ever or anything)

so:

1 65daysofstatic The Fall of Math
2 65daysofstatic One Time For All Time
3 The Mars Volta De-loused in the Comatorium
4 Los Campesinos! Hold On Now, Youngster
5 At the Drive-in Relationship of Command
6 Million Dead A Song To Ruin
7 Refused The Shape of Punk to Come
8 Of Montreal Hissing Fauna Are You The Destroyer?
9 Los Campesinos! We Are Beautiful, We Are Doomed
10 Neutral Milk Hotel In The Aeroplane Over The Sea
11 Explosions In The Sky The Earth Is Not A Cold Dead Place
12 Why? Elephant Eyelash
13 Oceansize Effloresce
14 Tellison Contact! Contact!
15 Isis Panopticon
16 Meet Me In St. Louis Variations On Swing
17 65daysofstatic The Destruction Of Small Ideas
18 Biffy Clyro Infinity Land
19 The Bronx The Bronx
20 The Futureheads The Futureheads
21 Cursive The Ugly Organ
22 Explosions In The Sky Those Who Tell The Truth Shall Die…
23 Why? Alopecia
24 The Go! Team Thunder! Lightning! Strike!
25 Elliott Smith Figure 8
26 Youthmovies Good Nature
27 Four Tet Rounds
28 Yndi Halda Enjoy Eternal Bliss
29 Sufjan Stevens Illinois
30 Islands Return To The Sea
31 Circle Takes The Square As The Roots Undo
32 Hot Hot Heat Make Up The Breakdown
33 Mew And The Glass Handed Kites
34 Aereogramme My Heart Has A Wish That You Would Not Go
35 Isis Oceanic
36 DJ Shadow Endtroducing
37 Panda Bear Person Pitch
38 The Shins Chutes Too Narrow
39 Million Dead Harmony No Harmony
40 Youthmovie Soundtrack Strategies Hurrah!...
41 Battles Mirrored
42 Godspeed You! Black Emperor Lift Your Skinny Fists Like Antennas To Heaven!
43 Radiohead Kid A
44 Frightened Rabbit The Midnight Organ Fight
45 Anathallo Floating World
46 Subtle For Hero: For Fool
47 The Samuel Jackson Five Easily Misunderstood
48 Belle & Sebastian Dear Catastrophe Waitress
49 Kyte Kyte
50 Life Without Buildings Any Other City
51 Johnny Foreigner Waited Up Till It Was Light
52 Saul Williams The Inevitable Rise and Liberation of Niggy Tardust!
53 Bloc Party Silent Alarm
54 Biffy Clyro The Vertigo of Bliss
55 Jeremy Warmsley The Art Of Fiction
56 Jets To Brazil Orange Rhyming Dictionary
57 Radiohead OK Computer
58 Patrick Wolf Lycanthropy
59 Lift To Experience The Texas Jerusalem Crossroads
60 Muse Origin Of Symmetry
61 Cats and Cats and Cats Sweet Drunk Everyone
62 Jeniferever Choose A Bright Morning
63 Mew Frengers
64 Death From Above 1979 You're A Woman, I'm A Machine
65 Bon Iver For Emma, Forever Ago
66 Beirut Gulag Orkestrar
67 of Montreal Satanic Panic In The Attic
68 The Fall of Troy Doppelganger
69 Elliott Smith XO
70 Phoenix Wolfgang Amadeus Phoenix
71 Biffy Clyro Blackened Sky
72 Squarepusher Hard Normal Daddy
73 Rival Schools United By Fate
74 Hope Of The States The Lost Riots
75 Four Tet Pause
76 Cursive Happy Hollow
77 TV on the Radio Return to Cookie Mountain
78 Kickball Everything Is A Miracle Nothing Is A Miracle Everything Is
79 The Mae-Shi HLLLYH
80 The Strokes Is This It?
81 Elliott Smith Either/Or
82 AFX Chosen Lords
83 Bjork Vespertine
84 Soulwax Nite Versions
85 The Dismemberment Plan Change
86 God Is An Astronaut All Is Violent, All Is Bright
87 TV on the Radio Desperate Youths, Bloodthirsty Babes
88 Sigur Ros Agaetis Byrjun
89 of Montreal Skeletal Lamping
90 Secondsmile Years
91 Saul Williams Saul Williams
92 Arcade Fire Funeral
93 The Knife Silent Shout
94 Daft Punk Discovery
95 Q and Not U No Kill No Beep Beep
96 The Mars Volta Frances The Mute
97 Explosions In The Sky All Of A Sudden I Miss Everyone
98 Hundred Reasons Ideas Above Our Station
99 Oceansize Everyone Into Position
100 Yeah Yeah Yeahs Fever To Tell

hope the formatting came out ok in that...

NOW YOU GO!

:D