n3tw0rk5 wrote: I've been to maplins and got a high spec psu and a quality cable.
Be aware with maplins. quite a few of the products they sell are the same cheap products you can buy from Chinese ebay shops but place in fancy packaging.
also be careful when thinking because its a big branded product that it may be better. Many of these companies make a lot of profit in after sales parts like PSU's . Most of the time, the part of a PSU that fails will be the secondary winding or the bridge rectifier. so why make an expensive product when the cheapest components might fail? a lot of the regulation and smoothing will be done internally on the device the psu is intended for. (which is why they make it clear only to use psu that is intended for the product, so it matches the spec required for the regulators). Apple make a lot of money out of replacement PSU's when a genuine apple PSU costs £20 for something that should really only be £5
when looking for a psu, don't buy on price expecting the more you pay to be better. My PSU is one I got from morrisons for a fiver and the cable i use is the one from my HTC desire and works perfectly. my Pi has been left running for a few days now.... (just for the LOL's, i am going to compile OpenELEC on it !!)
carefully check out the specs of the psu, check out what its tolerances are. a good psu should state it on its spec sheet. look for something that is better than + or - 5%