You have a couple of choices for camshafts. If you just want a Stage 1 mild upgrade, I'd recommend the Civic Type R intake cam (leave your ITR exhaust cam and move your stock intake springs to exhaust side and use the CTR intake springs or upgrade the whole lot of 'em to titanium). May as well stick with OEM, they're tough bastards and resist wearing on the lobes better.

Stage 2 or 3, you have your choice of intake and exhaust cams from Spoon, Toda and Skunk2