Hello all. I would like to get opinions on the best soundcard and mic setup for under $300. I just upgraded my Pent.3 to 120GB. I'd like to record electric and acoustic guitar(with preamp), vocals, keyboard and mic'd mandolin and guitar. I have a Shure SM57 already. Just want to be able to put down some original music without alot of expense or hassel. A friend has recommended the Audigy Platinum ex (external) due to no more open 5" bays on my tower. Is this a good card for my purpose? Also, is the Marshall 603 a decent mic to add for the acoustics? Thanks to all in advance.