I cloned my W7-64 Boot HD to SSD and its been running for over a year without issues. I also cloned a larger drive to a smaller SSD (larger in capacity but the data fit on the smaller drive); the only free software that allowed you to do that at the time was a free cloning utility from EASEUS. Does the Windows 7 disk utility allow you to do that?
BTW, I was thinking lately that at the price SSD costs new, you could start using an SSD per project. Compared to how much 2" 24-track tape used to cost, it's comparable. The question is how well an SSD can retain data over the long term for archive purposes. But it would be a handy way to work and archive.