I recently just purchased a 60gb SSD and absolutely despise having two hard drive in windows, the thing wasnt built for multiple hard drives (folder wise, save files, you name it, not intuitive at all).
So what i think i am going to do is return this SSD, sell my HDD and buy a 256gb SSD (i will never come close to filling it).
Is there any downsides to just having an SSD in a system?
Nothing prevent you from doing this. personaly I use only 1 hard drive but splited it in 2. C have my windows instalation and everything else is on the D hard drive. So I can format and keep everything .