Bench grinders

im looking to buy a bench grinder but am unsure of which to buy out these two

http://www.screwfix.com/app/sfd/cat/pro.jsp?id=26124&ts=88587http://www.screwfix.com/app/sfd/cat/...26124&ts=88587

or

http://www.amazon.co.uk/Silverline-Tool-150mm-Bench-Grinder/dp/B000LFYBJU/ref=sr_1_3/026-7566683-5351633?ie=UTF8&s=garden&qid=1173283685&sr=8-3#moreAboutThisProducthttp://www.amazon.co.uk/Silverline-T...0LFYBJU/ref=sr _1_3/026-7566683-5351633?ie=UTF8&s=garden&qid=1173283685&sr=8-3#moreAboutThisPro duct

any thoughts alex

The first one looks to be more substantial

The second one has no power . I have a simular one, and I use that to grind my tungsten electrodes for the TIG welder. Thats already on the edge for the poor thingy.

The first one looks like one that got a good reputation over here.