Hi Sam, & Welcome to Tom's Hardware!
SSD's are in the process of "developing engineering wise" so they are not presently as reliable as HDDs, but they are pretty good. HDD's as we know them have been around several decades.
That said, they are amazingly fast.
My personal recommendations are to stay away from OCZ SSDs, until they can regain their reputation and SSD stability from the Vertex 3 fiasco, and financially become stable or purchased by another larger drive maker.
The Samsung 830 drives have been quite reliable, and although the 840's have just been released, they need time to prove themselves on the market.
MaximumPC has the Samsung 830 on their "best of the best" list.
So, some food for thought. Most folks with new builds are using SSD for their boot drive