Power Supply Advice

Hi there, I am looking for some advice for a power supply. To be purchased in the UK.

Budget £75-80
Fixed Wires (I dont want modular unless its an exceptional power supply)
What It needs to power.

Gigabyte GA-MA790FXT-UD5P 790FX
AMD Phenom2 x3 720
4 gig DDR3 Ram
2xATI Radeon 4770
(all the above will probably be overclocked a bit)

2xSATAII Western Digital Hard Drives
2xSATA DVD/RW

2x120mm fans
1x140mm fans

Later on ill probably be adding another 4gig RAM so should take that into account to I suppose.

Hopefully this is enough info to get some help from the experts.

PS atm im looking at an Antec 300 case and a stock cooler, but if anyone has any other good suggestions as to case and cooler (again £70-£80 budget max for both) Im open to suggestions.

Ive been looking at http://www.microdirect.co.uk/Home/ [...] el-ATX12V]
Its not a brand im familiar with, however the reviews are good (Apparently its a Foxconn product)

It would be interesting to know just what wattage I should have with this setup

I would recommend switching out your PSU for Corsair PSU 750W CMPSU-750TX ATX12V v2.2 5 year. Corsair is highly recommended and considered one of the best... if not the best PSU on the market. It is a little more than your current listed PSU but it is worth the extra cost... IMO.

If you are wanting to Overclock, than you'll need more than a stock cooler. The Microdirect.co.uk website doesn't have a cooler stating it supports AM3 sockets. I would recommend the Scythe Mugen Infinity Quiet CPU Cooler socket 478, 775, AM2 754, 939 and 940SCINF-1000 from the site but you might have to buy an adapter for the AM3 socket... maybe.

Switch the Antec 300 out for CoolerMaster RC-690 black tower ATX nVidia SLi approved NO PSU.

If you purchase the Cooler Master RC-690, you won't need all those extra fans that you would with the Antec 300 and use that money on the Corsair 750 PSU.... just a thought...

Remember for budget wise, you can always add a CPU Cooler, additional fans down the road once you start getting into overclocking or temp issues...

Corsair VX550 is plenty for your system. HD4770 only uses ~50W.

Why spend 3x as much as you need to on a PSU based on possible future upgrades requiring more power, especially when video cards are moving to 40nm and CPUs will soon be 32nm, both requiring less power not more.

Don't get the HX1000. The TX750 is more than enough.

your basing everything on possible future and trend. well this is now and its always better to have the power than to not have it.