I agree with ulysses35.
There is a lot of misunderstanding about caching. Intel developed caching for clients and businesses that could not afford a large capacity ssd. Back when the concept was on the drawing board, Intel hoped clients and businesses would purchase a small 10Gb or 20GB for about $100.00. Microsoft Windows 7 and all software applications would remain on hard disk drives. The cache only produced a minor boost in performance. Intel hoped that once clients saw the slight performance boost they might be inclined to purchase a larger ssd.
Intel also researched the size of the cache. Intel determined that a 60GB ssd was the point where it made no sense to use the ssd as a cache for a hard drive. Instead if you have a 60GB ssd, then Windows 7 and software applications should be installed on the ssd to take full advantage of the ssd capabilities.
Since you are thinking of purchasing a 60GB ssd, it makes more sense to install Windows 7 and your software applications on the ssd. The ssd performance boost is much higher than the hard disk drive performance increase.
Windows 7 will use up a just a little over 21GB leaving some room for software applications.
I do not know if you are a gamer but I hope you know that an ssd will not improve actual game play and it will not improve FPS. The only thing that happens is that the game will launch faster and levels, maps, or charts will load faster. If you participate in online gaming, then the ssd will not improve anything. You'll still be at the mercy of your Internet Service Provider.
A few days days ago Tom's Hardware published "SSD Performance In Crysis 2, World Of Warcraft, And Civilization V". It is an analysis of ssd's and gameplay. Here is the link:
http://www.tomshardware.com/reviews/ssd-gaming-performance,2991.html