With an SSD, one thing that is important for performance is that the filesystems be "4K aligned," starting on an boundary that is an exact multiple of 4 kibibytes (4096 bytes). Win7 installation does this automatically, but it's worth checking to ensure that you are properly aligned.
Okay, Mr. Bigmouth (me), how does he do that? Oh, crap, now I've go to work and find the right program... AS SSD is an SSD benchmark tool, but in the upper-left corner it will tell you what driver you are using and if the partitions are aligned.
Also, there are a number of settings that Win7 will do differently if you install on an SSD or on an HDD. These will be set to the HDD settings, so take a look at this article and see if you want to apply any of the suggested tweaks: http://www.tomshardware.com/reviews/ssd-performance-tweak,2911.html