5) A 60gb ssd is ok for the os and not much else. I would get 120gb which will hold the os and a handful of games.
OCZ is not so great from a reliability point of view, either. Read this report on ssd return rates: http://www.behardware.com/articles/843-7/components-ret...
Look first to Samsung 830 and Intel first. Crucial is OK too.
5) I suggest you consider selling your GTX560ti and buying a single GTX670 or such.
I think it is wrong to build initially with sli when a good single card solution is available.
If anything, you will avoid any microstuttering issues.
Read more on that here: http://www.tomshardware.com/reviews/radeon-geforce-stut...