Well, after a whopping one comparative review, I'm getting MyDefrag. Apparently fast and efficient. And of course free.
It also said that Windows' defragger isn't actually that bad, and does its job quite fine.
Also I got CCleaner. I think I already have something like RegScrub there too but I'm not even sure what they all do at this point. I'll run CC then defrag and see how it goes. I'm sure I could also much streamline my startup and shutdown too. I've done that, but I'm always quite cautious and it's been a while so I suspect there's more useless stuff there again.
And I should just clear out stuff, but I'm not sure what to remove...
Anyways, thanks again for the help