Sorry if this could be found elsewhere, but I'm in a rush and don't have time to siff through other topics (posting and checking back much later).

I'm planning on dropping one of my guitars to C standard/C#. What would be the ideal gauge?
probably some where around 12-56
my stuff:
schecter c-1+
ibanez rg3exfm1
schecter avenger 7-string with emgs
esp/ltd mh-50
peavey 6505+ 112 combo
tc electronic polytune
way huge green rhino
mxr micro flange
mxr smart gate
dunlop crybaby
Check out GHS Heavyweights, or any of the "Light Top Heavy Bottom" string sets.

Heavyweight 10's = 10-13-17-36-52-60
Heavyweight 11's = 11-14-18-36-52-70

Personal note: If you choose the 11's, the .070 gauge string may require slight guitar modification... on my Schecter C-1 Classic, I had to drill out the tuning peg hole to accept the .070 string, though the .060 string from the 10's fit fine without mod.
You guys like noodles, huh? I use .11's for standard tuning and .12's for one step down. It depends on what you're comfortable with.