was just wondering what the differences are between them cos you see loads of pros coming up and only the odd edition model

The pro's were bought out to replace the TXT's in 2002, although Gas Gas sold both side-by-side that year. There were one or two teething problems with early pro's as the were a new, much lighter design engine and chassis.

In 2003 the pro's were improved following reaction to customer observations but a few TXT'x were still made and put on sale for those looking for a well proven reliable machine at a knock down price. For an average club rider, a well looked after 2003 TXT would be a very good choice, if you can find a good one.

I would consider the edition if they still made them. The Pro is top notch for performance but I think most would agree at the expense of durability - same for all bikes I suppose, but the Pro goes further than most on the performance front.

I ride expert (barely) and I reckon the edition wouldn't make too much difference to my riding from the Pro, although it may make more difference to a lighter rider with more modern techniques - I tend to be fairly straight forward - If the wheels move too far to the side, the chances are I've just come off

For me, the 06 Pro became too light at the front end, very flickable, but I need stability - I loved the 05 Pro 300 but after that I've struggled with them.

I think you need to try both though.