I would suggest buying one quickly, before another earthquake or flood drives the prices up to unaffordable amounts again!
You get special brackets for SSD's and it fits perfectly into a normal drive bay. Some drives come with these brackets whilst my OCZ didn't so I had to buy one but I think it was like R30.
Hope that helps
I have mine sticky taped to the top of my drive cage
But seriously, if you run any production software like Adobe products, it highly recommend it. However, it can't match the sheer thrill and pleasure of dropping cash on a new graphic card, CPU or peripheral. IMHO.