Feeling self-conscience about my rig...

[Solid-Stark]

Pff tell that to my rig Lulz (In my sig). I will be upgrading my card soon.

Your rig is great in all fronts if you just play SC2. Your CPU & RAM is perfectly fine. If you want to improve overall snappiness, look into an SSD.

Your GPU could look into an upgrade for future games. If you cant hold out for AMD's 8000 cards, then you cant go wrong with a 7870, 7950 or Nvidia GTX770.

That's pretty much it. No need to feel too self conscious about your rig at all.

Edit: You have socket AM3+, so maybe (although not necessary) Look into AMD's Vishera FX line (Piledriver). You will want FX83xx+ minimum to make anything worth it.