dude i use a samson Q8 connected up to the front mic port of my creative X-fi. Sounds pretty good. Planning on someday getting a marian trace 8 and some valve mic preamps, as well as a couple of condensers but for now:
I recently discovered that you should put your mic at an angle to the guitar speaker and on the edge and make it so that it is a few inches away from your amp. Also in my case i need to give the top end a bit of a boost but after that it sounds quite good. You can't really hear hear the guitar massively well but there's nothing i can really do about the hihats. I only have 3 mics so i can't really isolate the hihat very well which is really loud.