Audiophile
I just bought an M-Audio Firewire Audiophile 2496 about a month ago. I am very pleased with it. After driver installation, the unit didn't show up, I went directly to M-Audio site, downloaded an updated driver, installed it and it has been flawless since.
I've used it with Logic Express, Cubase, Reason, Garage Band, Soundtrack, peak, and a couple other audio/midi apps with no problem.
The audiophile doesn't have a pre amp but I already had one (Studio projects) so I use that.
The audiophile list for 350.00 and sells for 180.00 at online music stores. I got mine new in box from a E-Bay music store for 130.00 tax and two day shipping included.
Whatever model you decide on, check E-Bay, you may save some $.
Also i originally was going to buy the USB model but i read MANY bad reviews about it. So, I recomend finding online reviews about whatever model you decide on.
Good Luck,