I'll second the FW410 recomendation...as far as matrices go...it will record 2 channels of analog as well as 2 channels of digital (coax or optical)...so if you have an outboard a/d, or can patch the aud from a digital source, you'll be fine...I've never run a UA-5, so i can't really compare the two...and as far as price, I got my FW410 for $325 new...so i think that is about the same as the UA-5....for the last few months I've been running Audix SCX-1 and have been quite pleased with the results...let me know if you'd like to hear some examples...
matt