what camshaft/heads should i use!

I am plaaning on upgrading my cam and have no clue on which to purchase. i would like a cam that lopes at idle (radical), but not hinder the motors performance. Any info will be helpful. i am also planning on upgrading the heads this month or next.i would like a cam that i could use now but not have to change again. i could just wait untill i get the new heads, idk. Any suggestions on head would be useful also.

mods to engine - CAI, 70mm MAF, 75mmTB, TFS track intake, 24lbs. injectors, MSD dizzy, MSD digital 6+, MSD HVC coil, march pullies, BBk Headers equal length, BBK x Pipe, flowmaster 30 series

Thanks joshua