Strictly from a personal point of view I would have the boot drive a SSD and keep the big drives for data backup.
I run 120GB SSD's in all my machines as 60GB would be a bit small after the OS, security and the usual apps like CCleaner and stuff are loaded but still doable. Plus the 120GB 's are reasonably priced right now.
I don't know but I think you said $30 for an SSD - that is extremely cheap even for a 60GB one unless it was a use one of course but buying used is fraught with problems in my mind.
Whatever you decide to get re a SSD there is a general feeling that the ones with Sandforce controllers are not perhaps the best choice so go for one with the other type controllers. There are plenty of members in here that will advise you - me I pick Samsung and Crucial as my particular choices, and if you do go SSD make sure you read and follow the tutorial on setting them up before installing onto them - SSD Alignment