well, for live use, ableton will run well on pretty much owt, just go for a big processor, loadsa memory, and plug in an echo indigo soundcard, bobs ur uncle.

I'd say go for the cheapest if ur takin it into a club, it may get drowned in beer, knocked around, or, heaven forbid, even nicked.

I got my packard bell off teir 1's ebay shop, great factory refurbished laptops cheapo (with full 1 year warrenty).

http://stores.ebay.co.uk/Tier-1-Onli...QQftidZ2QQtZkm