iPhone not recognized by iTunes

[nabass]

The harddrive in my macbook crashed so I had a new one installed and went ahead and upgraded to snow leopard while at it. When up and running I did all my updates and then went to sync my iphone and Itunes is not recognizing my iphone. I've tried switching USB ports, tried rebooting my phone, tried deleting and reinstalling itunes, have authorized itunes on this computer, tried the mobiledevice delete and reinstall thing but nothing has helped. Please, suggestions? It does charge the phone just not recognized by Itunes