iPhone not syncing since Security Update

[thefireboy]

Right well it all started on about the 19th, the latest security update was the only thing I updated through Software Update. Now my iPhone 4 (32gb 4.3.5 version) won’t get recognised and my keyboard USB ports don’t work. I’ve checked through System Information in Utilities and the iPhone is recognised in the USB ports on the back of my iMac (Version 10.7.1) I think it was security 2001-005. So my iMac knows my iPhone is there, just doesn’t want to let the Apps like iTunes and iPhoto see that so I can sync it and its horrifically annoying as there are a few albums that I’m loving and I can’t get them on my iPhone.
I’ve tried re-updating the Security Update through the Apple website to know change.
Any suggestions?
Cheers
Jake