The best all-rounter interface I know of is the MOTU Ultralite. Not cheap -- Streetwise have them for just over a grand -- but they are brilliant. Supremely flexible, daisychainable FireWire, very clean mic preamps (with XLR inputs!) and a very grunty onboard DSP chip for 16, 24 and 32 bit recording & processing. Considering its diminutive size, it's got ports out the wazoo, front 'n back:
Seriously, with one of these, you can use it anywhere and you won't need to think about upgrading for years.