I haven't got Pulse, or indeed a PSP, so this is actually my HD soundtrack.

Dan F/Jariten: Halo Backdraft Remix (perfect tune to race to)
ils - 6space (Next Level)
ils - Angels - original mix and Santos Come With Dub
Stisch - JFK
Chris Carter - Siren
La Liga - Out In London (breaks mix)
Simpleton Feat. Jessica Grande - Just Let Go (Boabinga & ID Remix)
Plump DJs - Disco Unusual
Plump DJs - Blackjack
Fatliners - Sky
Chemical Brothers - Loops of Fury
Koma + Bones - Powercut (Rewired Remix)
General Midi - Further
General Midi - Entertainer
General Midi vs Hyper - We've Been Waiting
Backdraft - Fool
Zero - Emit/Collect (Rennie Pilgrem Mix)
Refunk - It's Groovy There

And I'll have a back-up punk and rock playlist for when I'm that kinda mood:
Deep Purple - Fireball
Hawkwind - Motorhead
Motorhead - Bomber
Stooges - TV Eye
Crime - San Fransisco's Doomed
The Misfits - Ghouls Night Out