If you're using the SSD as a boot drive, 60GB is a good size, it just depends on how many additional programs you want to put on it. No need for floppy. You shouldn't need Ultimate. Try installing the Upgrade without entering a product key, then once you've made it to your desktop, install it again this time as an Upgrade and enter the product key provided. (Works for school bought copies, I presume it will work for others). I don't like starting with SLI off the bat, so I would recommend a single 470.
Have you looked at the Thermalright Silver Arrow CPU cooler? I'm a bit concerned about the tall heatsink on the ram and the fan on the HSF having clearance. Any method to determine fit before laying out the $$ on RAM?