I can reccomend the dewalt model, uses a TCT blade, very noisy but nicer to use than one with an abrasive disc as their is no dust, just hot specks of swarf, a bit pricy at around £300 upwards, but well worth it. found one on fleabay, this one os cheap, they go up to £400.
http://cgi.ebay.co.uk/DEWALT-DW872-...Home_Garden_PowerTools_SM?hash=item3a5846e597
I have used mine for 3 years with no problems.
Chunko'.
Have a look at the Evolution Rage, they come both in Pro and Diy versions. The only down side is there is no soft start so if your using it at home you will need a 'c' or 'd' curve breaker.
Chris.