Lessee. The traditional method is to attach only the SSD and install the OS (to ensure that no part of it gets left on the other drive). Then re-attach the HDD and repoint all your file storage to it, My Documents and My Music and the storage directories for whatever space-hog apps you may run, like iTunes or video editing or...
Finish installing all the apps that you are going to run. With an SSD of 200 GB, all of your programs will likely fit and you don't have to worry about how to install some apps on the HDD.
That's the traditional setup, because most people don't want to spend more on the SSD than is needed to accelerate app loading. With 200 GB, you can think about what part of your data would benefit most from really snappy read/write times. Dowloaded music doesn't need it. You download at Web speeds, and play at 1x CD speeds, and any old drive is fast enough. If you are editing, transcoding, or capturing HD video, the rest of your SSD will make a lovely place for you to work. For those few of us who run databases, it's a great location. For most of my stuff, having it on an SSD would be a waste - it just doesn't need to go that fast. 100 GB is more than I am going to put on the SSD for the next few years.
(Actually, I'm quite concerned with noise, so I put my Email and frequently used docs on the SSD so that my HDDs don't spin up when I access them. But nothing large.)
And just in time, here's Tom's on the best that you can get for your money: http://www.tomshardware.com/reviews/ssd-solid-state-nand-reliability,2998.html