You can experiment with the Page File. Some people even turn it off, but I don't recommend that. How much of it is used depends on the type of programs you run and how much RAM you have. With 8GB you should be fine on the latter unless you run a lot of RAM-intensive programs or have tons and tons of stuff running simultaneously. If you get a "Low on System memory" error you'll know you've got it set too low.
Another alternative is to move the Page File to one of your mechanical drives. Set up a 2-3GB Page File over there and you can turn it clear off on the SSD.
EDIT: I was typing and didn't see your last additions. I think you made a wise choice.