Recording

[keitokyun]

Does anyone have any suggestions for microphones that are good for recording piano? thanks!

[minor9th]

What is your budget? In my experience, it's hard to beat DPA 4006 mics, but they are about $2000 ea! At the other end of the price spectrum, try a pair of Rhode NT5's for about $430 or Studio Projects B3's for about $300. I wouldn't spend less than that if you want pro or semi-pro results..

[ted]

What about a Zoom recorder ? I prefer the sound of its recordings to that of most of my bought CDs.

[indianajo]

Another poster on here told me in a studio, with other instruments playing, he used a couple of Audio Technica 4050's in omni setting taped to the underside of the soundboard of a grand. These are about $699 here.
In my music room, which is a bit hard around the edges, I'm  using an $80 used shure KSM27 condenser cardiode mike.  I'd like to find another.  There are no other instruments in the room.    The sound is a bit bright as these is a vocal presence 5 db rise around 8000-15000 hz.  These are about $300 new.  I'm trying to damp down the high frequency rise with a foam "pop filter" I'm sewing myself out of AC filter foam.  Maybe that is why vocal mikes have hf rise, because pop filter is required for vocalists to keep down the explosions and the slobber.
Shure sells a flat  response cardiode condenser mike, the KSM32, for about $550.  These are supposed to be hand matched to standard, so any two are supposed to match for stereo.  I'm trying to budget for two of those in my future. 
I see shure mikes like the KSM's on locally produced HDTV programs, as KET Jubilee, and Lexington's Woodsongs.  These are mostly used as multi-instrument mikes for string band groups, at a distance of about 3 feet or a meter.  Both shows have audience noise to contend with, hence cardiode is probably the pattern used. 
You'll need a mixer providing phantom power for any condensor mike requiring it, as the above.   
Have fun shopping.