Yeah that would be pushing it...especially if your using a cheapo. I had a cheapo 400 watt that had a hard time with a Athlon 64 3500, 1GB DDR 400 Ram, and a 7800 GT. I put a second hard drive in it and it just pushed it over the edge lol. So yeah, 350 might have a hard time.
Maybe? Depends on what your planning on getting. The heat shouldn't really effect your components much though considering the fact the PSU just exhausts out the back. Thats what I did though, just bought mine for future proofing. Its a Thermaltake Toughpower 850 watt...I don't even come close to requiring that much on my current build, but it will eliminate me having to spend even more money on a new PSU later.
And if your wondering, I love my Thermaltake Toughpower. Its extremely silent, and I have had whatsoever no trouble with it.
probably will not, unless its a brand name psu with like a peak wattage of 400 or something, see that it came with a case its probably generic, and im 100% sure it will not work or work propely
Well i mean if ur seriously on that big of a budget, just go to any computer store n buy a generic 450W psu it only cost like 10 bucks, it will work. i've tired before on almost indenitcal setup.