Booms my man. That is one of the single most awesome upgrades I've done in years. I actually need to invest in a larger one. My 80GB SSD handles the OS, apps, and some games but I can usually only have one or two games on it at a time. the rest are on my 10k velociraptor.
Prices have really come down on SSD drives too. Intel IMO make the most reliable SSD drives though they usually aren't the fastest. Intel is the only brand I'd buy though. Very low failure rate compared to all the other SSD brands.