Have a look at this:http://solid-state-drive-review.toptenreviews.com/
There are some providing less speed but more reliability. Then others providing high speeds but less reliability.
So you just have to work out what's best for you.
I think one of best SSDs on the market today is the Samsung 840 pro. I think the 256GB version is out of your price range.
If it is the Samsung 840 Evo is still a decent SSD but at a cheaper price