After you get the whole drummer / technique / kit thing down, the next things to be mindful of are:
1) I apologize, as I don't know how advanced your knowlege is, but I'll mention this one just in case -- Phase. Make sure the tracks are in-phase. You can do this during tracking or mixing. If you have a typical software setup like cakewalk, cooledit, or whatever . . . zoom in really close to the wave forms. Now look at the snare track and the overhead track -- one on top of the other -- and make sure the peaks and troughs (valleys) of the snare track are in perfect (or close to) alignment with the snare hits on the overhead tracks.
Now do the same with the kick.
2) EQ : 2.5 khz is the golden frequency -- on snare, it will give you more crack, and on kick it will give you more click. The tricky part is that on overheads, it will also make the cymbals sound like ass . . . so first you gotta' gate the snare and kick, then give 2.5k a boost on kick if it needs more click, and / or snare if that needs more crack.
If the snare needs more meat, then boost 200 hz.
You might also make it a rule to cut 400 hz (with a very wide Q) generously from the snare, as well -- it will make it sound tighter and it will also sit in the mix better.
Anyway, don't be afraid to be dramatic when EQ-ing the snare track, as you want it to compensate for whatever is too present -- or what is missing -- on what the overhead tracks have already captured. If the snare from the overhead tracks sound too dull, then you might find yourself boosting 2.5k on the snare track by as much as 10 dbs -- or low-shelving everything below 1.8 khz or whatever it takes to give you the crack that's missing from the OH's. Or cutting, obviously, if there's too much crack and/or not enough meat.
3) Limit and compress. If you want the drums to have more attack, then compress. Fiddle around with attack/release times untill you get it the way you want it.
If you want the drums to sound more powerful, then Limit. Waves' L2 and/or L1 (plugins) is great. Sonic Timeworks mastering compressor is another one I like for more extreme effects. Don't be afraid to be heavy-handed, but be mindful of how it effects the dynamic element of the drum track.
