5850: questions regarding PSU and cpu bottleneck (E6750)

Hi guys, I'm thinking about upgrading my system with one of these prettry sweet 5850's. I'm a little bit concerned if my psu would handle it and if my cpu (E6750) woouldn't bottleneck the 5850 performance.

My current rig is: E6750 (stock speeds), Gigabyte P35C-DS3R, 4x1gb Corsair XMS2, HD4850, 2x500gb Seagate in raid 0, Zalman 460B-aps psu, Cooler Master Mystique.

I read that ati recomends a 500w psu for this card.

I'm planning to buy a Cooler Master HAF932 or a Stom Sniper as weel, since the Mystique isn't that "roomy" and I need better airflow. Unfortunatly, I don't have anough money right now to upgrade to a new i7 plataform, since I'd have to buy Cpu+mobo+ddr3 at once.

So, basically that it: will my Zalman psu hold the 5850? Will the E6750 be a much of a bottleneck to the point I wouldn't be able to enjoy the 5850 performance?

Thanks =)

Sorry for any English mistakes!

The E6750 would only have a perceptible bottleneck at 1920 and higher resolutions.

I agree with Shadow though. Upgrade the PSU as soon as you can and a Corsair CMPSU-550VX 550W is perfect but the new lower rebate put it back up to $79.99 and they're still out of stock.

The thing is: my budget wouldn't let me buy a new psu right now. I'm not in the us. I live in Brazil and things tend to be expensive here, especially psu's. I mean, I can get a 5850 for about R$900 (which would be like U$ 515). The cheapest deal on a Corsair TX750w i found was R$ 510 without shipping. Plus that, I want to get a 750w ish psu cause I may go crossfire in the future when prices get down (with a new motherboard, processor, etc. of course).

So, I if do not overclock anything, do you guys think that my Zalman would be up to the job? (Well, it's a Zalman after all). My budget is damn tight right now

About the HAF932... I was really tented to buy it because I found a good deal in a store here where I live, so I could pick it up (and save a lot of cash without the expensive shipping). Their selling it for R$ 650 cash. This case sells for about R$ 900 on the net. I'm only worried about it's lack of dust filters though...

That wouldn't work. It'd be more expensive I guess. Because I would have to pay for the psu, shipping and taxes (yeah, the "taxes guys" here monitor shippings from abroad and taxes them. They say it's smuggling!).

I guess I'll buy the case now and wait a little more to get the 5850 and the psu at once.