Hey SNG,
You can move up to $10 NL. I didn't realize that you had that much money backing your action. The $10 games are only a small bit more difficult than the $2 ones. You just won't find as many people pushing PF with 86o, that's literally it. The skillset of your opponents will be the same, and if you're planning on playing at UB, they are for the most part weak-tight. But stay away from my tables.
I'd reccomend you wait awhile before moving up to $25 - on UB at least, there are quite a bunch of semi-solid multi-tabling grinders who have it when they say they have it, and don't pay off sets, and things like that. Don't get me wrong, they're not that good, but as I've learned, you will pay for your mistakes much more than at the other two levels. Your bankroll is still adequate for the game - I'd just play maybe 10K hands (of course I wouldn't balk if you wanted to play more) with a winrate over 10PTBB/100 at $10 (mine was 13 when I left and I was doing 30 at $2 - this is very doable at these stakes with nothing but ABC poker - trust me).
As far as SNG's go, I stared my poker career with $5 SNG's. They rely on luck much more than cash games do, have huge variance as a result, and quite frankly you can make much more, even at $2 NL than you can by playing $5 or even $10 SNG's, unless you have a torrid run. Like the others said, stick to money play - this is where it's at. Play a $1 MTT for fun or something or take a $8 flyer on a sub-sattelie for the Party Poker Million if you're jonesing for some tourney action, but I reccomend dedicating your time to the ring games.
You seem like you're committed to making it - I wish you the best.