Hey, there is still hope for us.
They're still giving you bad advice because being agreeable is perceived as preferable. And you want to spend up to 150 on RAM yet you can't afford a new PC? Come on.

A new PC would cost at least 1k, it's one thing to have a couple hundreds away, another to have a thousand :P
In the end RAM will probably cost less than half that so I'm happy :D

I was afraid Italian prices were that crazy!

It'sd not bad advice. As he noted, it's partly a budget concern, and party the fact he doesn't need a whole new rig right now. I have the same CPU as he does and have no complaints or issues with it for gaming even now. Depending on his board, he may have a decent upgrade path for the CPU as well as the GPU and he obviously has slots for more RAM. No need to dive into a completely new rig when he can upgrade a couple components at a time for a fraction of the cost of a new build.

What is replacing his RAM going to help him with, though? You think he's playing RAM-intensive games with that GPU? He's just throwing money away because Windows reports that a lot of RAM is reserved, not even used.

Decent enough point on the GPU. But if RAM is something he can pick up now for a decent price (and triple channel kits are harder and harder to find), then it's not a bad idea, especially if he's going to upgrade his GPU next. Hell, I'm looking at adding RAM to my system and I'm only using a GTX 560Ti. I've got Witcher 3 installed and it seems I can run it., but it's RAM hungry. Maybe he's in the same boat (not sure how that GPU would stand up though).

Anyway, bottom line is if he's looking to go with a couple or three upgrades instead of a whiole new rig, you have to start somewhere. If he's looking at a deal on RAM right now and can afford that at this point, then there's no harm in going that way.

*edit* Oh, and he doesn't state what else he may be doing with his rig. If he's using it for other things than gaming - things that use lots of RAM, and he has a 64 bit OS, this could still be a good option.

Bump the RAM up to 6GB or 8GB and maybe if you have the funds get a new GPU. I think DDR3 SDRAM is super cheap in comparison to getting a new system.

Seems like you've got all of the feedback you need here, don't know what the 1 guy's problem is with your rig, but your rig is fine! Great mobo and CPU to keep upgrading for at least a few more years to come, IMO. I'll just 2nd/3rd/4th it all by saying:

Yep, that's a good rig that will just get better if you up the RAM for now (priority, I agree.) I also recommend just getting 3x4gb, putting money towards anything less at this point would be a bit wasteful, IMO. As has been said, what is your OS? If you're not running 64-bit win7, I recommend that as a pretty high priority. Then I'd recommend a power source, most likely, so then you can upgrade your graphics card (which isn't bad, I just run a GTX 560ti like Coel and can run a lot of top-end games pretty well) without worrying about draining the system. Also, never underestimate the value of a ~$10 fan addition to keep all of your parts cool during the summer heat.

I think I need to upgrade my power source.

Yeah, actually started considering the RAM upgrade after Witcher 3 as I noticed recent games use more and more RAM. And yes I also use some other RAM intensive applications for my rig as well as I study computer engineering, though until now I used servers from the university to handle those.

Already have 850W power source and 64-bit Windows 7. Also already have a case with good ventilation and installed a good dissipator (not sure that's the word) for the CPU since it's already overclocked.