I feel like you were having an issue with that before...
When you decided to no longer dual-boot, did you do a format or just delete the partition XP was on?
I would highly recommend the Samsung 830 Series if you're making the jump to SSD. It's sleek and sexy, comes with a bracket if you get the upgrade kit, and the thing hasn't had a single hiccup since I got it. Problem is disk space. 64, 128, 256 and 512 GB are your options. If 128 isn't enough, you're looking at $280 for the 256 GB. That on top of another HD is a hefty price for storage.