My Computer / Recommend upgrades?

By far the biggest gaming upgrade you could do would be to upgrade the GPU. The 3650 is a pretty weak GPU. You didn't mention anything about your PSU, but if it's a decent PSU you should be able to upgrade to a 4850 and have a much better gaming experience. You also didn't mention what resolution your monitor runs at. That has a huge impact on what parts we recommend.

HIS H485QT512P Radeon HD 4850 512MB 256-bit GDDR3 PCI Express 2.0 x16 HDCP Ready CrossFire Supported IceQ4 Turbo Video Card - Retail
http://www.newegg.com/Product/Prod [...] 6814161244 $99.99 - $20 MIR

Sorry about that, its a Rosewill 550w. Monitor is an LG 22in and runs at 1680x1050. I like to use full resolution on games, but often i am not able to with my current gpu. I have been thinking about the 4850, i just don't know if i should get 512 or 1gb. It really depends on if video editing relies more on the cpu or gpu.

Step one in that case is to replace that PSU, before it pulls a Chernobyl. Look for Antec, OCZ, Corsair, BFG, Zalman, PC P&C, or Seasonic (unless in a 220V area). Of at least 500W btw.
Step two, replace the Vid
Step three, replace the HSF

Yes, the chances of a Rosewill PSU blowing up and frying components is very high. A PSU upgrade to a quality unit should be in the very near future.

Yes, a 4850 requires a 6-pin power connector.

You'll have to check the benchmarks for the particular games you play, but a 4850 is a VERY big step up from the 3650. Your FPS will at least double in most games.

Good luck with that Rosewill PSU. I hope you don't end up with the indoor fireworks show that Rosewill's are so famous for.

Since you're willing to risk the system with the Rosewill PSU, a 4850 would be a very good upgrade to your system.

i think i got my opinion heard didnt i? =)

As to the Rosewill PSUs, their older models got them an absolutely poopy reputation. People still commence linear raving panics (that's where you run in a straight line, frothing at the mouth and waving your arms, until you bang into something hard enough to knock yourself out) when they see one. Check www.jonnyguru.com, however, and a more recent one surprised them, and it wasn't even an Active PFC/80+ model. Don't get me wrong, there is NO WAY I'd ever buy one, but if you find that your model was favorably reviewed in a COMPETENT technical review (i.e. with load testing, waveform analysis, etc), you should be fine with it. In that case, I agree with others that getting a 4850 would make a huge difference. How much of that RAM do you have? If only 1GB, then get yourself a 4GB (2x2GB) kit to replace it; that will help in gaming but also in other things.

If you decide to replace your PSU, among the better ones are Antec, PC Power & Cooling, Corsair, Seasonic, and Enermax. For a single 4850, you will not need any more than 500W; even the Antec Earthwatts 380 can run a single 4850, but leaves no real headroom, so I'd suggest at least the 430W model if you choose Earthwatts, or whatever is comparable (430-450) for the other brands.

That OCZ unit is not in the same league as the others. Although it has Active PFC, it is not 80+ certified. It also has considerably more capacity than you need, but at that price looks like it still may be a decent deal. A review of what would appear to be a similar model appears here: http://www.hardwaresecrets.com/article/704 ...and was favorable. Overcome one possible design shortcoming by using a surge protector (a good idea anyway). Also, the model you are considering has more SATA connectors, unlike the reviewed model, which had only three.
It looks like a decent choice.

Thanks for the recommendation. I found the 700w ModXStream Pro on amazon for 53$ !
That is probably what I'll get. Thanks.