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A step-by-step guide to microphone positioning
Pete Riley - Rhythm Magazine, Mon 8 Jun 2009, 2:49 pm UTC

If we have channels left, the next part of the kit we would mic would probably be the hi-hats. These would usually be miked using a small condenser mic from above, 2"-3" away and sometimes pointing away from the kit. The proximity effect has to be taken into consideration here – get too close to the cymbals and they will take on a gong-like quality. This can be EQed out but is best avoided. Another thing to avoid is placing the mic so that it faces the point where the air escapes from the hi-hats (also a good reason not to have a fan pointing right at the kit on hot gigs).
Samson 7kit Drum Mics
Birmingham Drum Centre BDC Drum Mic Kit
Audix DP7 Drum Kit Mic