kind of wary to recommend a lav mic in to a behringer uca in to a pc. mostly because i don't have the uca.

in theory it should be one of the cheapest ways to get decent sound, though it needs a 3.5mm to rca adapter on the input side. some audio folk seem to really like the UCA's

though its approximately the same cost to just buy a razer seiren.

the nice thing about the lav setup is that its also pretty much the smollest audio rig possible as the entire thing fits in the smallest pelican case lol