are SSD a lot faster that hard drives as 1st hard drive and if you install a program on the second hard drive would it run with the speed of the second hard drive or with the speed of the first
It depends what you need it for, intel will be releasing some new SSDs soon - so the current price will drop by a few quid, I'm not sure when but if you can wait a little bit longer you can get a bigger SSD card (250GB) for much much cheaper.
One SSD card is better if you use your computer intensively alot. If you only use it a little bit and don't really care much about the speed then it's not really a problem.
For the time being nah, but, by Feb 2011, it may well start to become worth the money as 160GB intel SSDs (Gen 3) will release, and they will be about the price of the current Gen 2 80gb model by Intel). Quite a large price decrease.