is my PSU ok or junk?

I got this at Best Buy a while ago to replace the standard 250w. My computer overall is crap so it doesnt matter right now but I was wondering if I should look into replacing it. Specs copied off the label:Mfr: DynexModel: DX-PS500vAC Input: 115/230v- 60/50Hz 7/4ADC Output: +5v=40A (Red), +12v1=16A (Yellow), +3.3v = 35A (Orange), +12v2=18A (Yellow/Black), -5v=0.5A (Blue) +5vsb=2.5A (Purple) PG (Gray)Output Watts: 500w +5v +3.3v 180wis my PSU ok or junk?
Well if you don't have any power hungry parts, there's no point in replacing it. You'll just be wasting moneyis my PSU ok or junk?
Yeah but I mean for when I do upgrade it.
It really depends on what you're going to upgrade your computer with... but that PSU will do for now...Keep in mind that most system builders believe that PSUs not made by Thermaltake, OCZ, PC P%26C, Enermax, Antec, etc. (There are a few others I haven't listed) will probably die after a year as they are generally not very well built and they are too unstable. If you ever get performance parts such as an 8800 card or performance RAM, I would get a new PSU...
You should hold off buying a new PSU until you actually upgrade, then you can buy a PSU ready for what you have and there could be price drops or a new cheaper PSU made and stuff.
Very little can run on a 250W PSU. I'd say you're going to have to upgrade at some point, so you might as well.
That psu is ''meh'' I would DEFINATLY not get it cause its offbrand and has low +12v v.'s... why not order on the internets?
Your P.S.U. is junk. You will need a decent one with at least 25 amps on the +12v and 400 or more watts in-order to run most good video cards plus enough power for your rig. Lots of people skimp on their power supply to save $$, but I am not one of them because if your supply fails, you could damage or ruin some other expensive parts in your computer.
I got a PC Power and Cooling750 Siliencer knowing I wouldn't use maybe more than 3/5ths of the power. I hear its the best on the market and even if you won't use more than half of the power, I still recommend getting it.

Only gripe is that it was a little big... not a problem though unless you use a tiny case... make a small investment in zipties :P