Quote Originally Posted by Eekiki View Post
Using my Crucial M4 500GB drive, and haven't had any problems with it. Runs like a champ.

As for a speed boost in-game, it will probably be minimal. Possibly unnoticible, because your speed will be limited by your network connection in many cases.

I noticed no difference in 1.X or in FFXI between my mechanical HDD and SSD as far as in-game performance, but the programs load quicker when I launch them.

Even so, buy one. Fewer mechanical parts in your computer means less opportunities for things to break.
The difference people noticed in 1.X on an SSD was due to the Client having almost 200,000 files vs a game over double the size having only ~6,000 files. The SSD handles the many many small files far better than a traditional drive. For many it removed micro stutters in game due to loading data.