A bit of help choosing a MTB please

Wacky Racer

Hello all, I am looking for a bit of guidance on choosing my next bike, I am hoping for some educated opinions as to what to go for next. I have been riding a Kona Blast for a while, but I am going to hand it down to my son and get myself a full-suss. I ride mainly trails, at present nothing too tough but would like to improve my riding and get into some of the more technically challenging trails. I have a budget of around £1,000 and read the reviews of full-suss's for 1K in this months MBUK mag, but was wondering whether I would be better off buying a 2007/08 model at a great discount. I have seen four bikes at Winstanley Bikes and listed below - I will of course be trying these out so compatibility with my riding may rule some in/out anyway.

1) Iron Horse Azure Sport 08
2) Felt Redemption 2 08
3) Fuji Outland Pro (07)
4) Marin Wolfridge (07)

All of these are available in my size at a good deal, all seem good bikes but there are some subtle differences. Any help would be great, I am even open to alternatives. I have posted links to the four I am considering if that helps.

http://www.winstanleysbikes.co.uk/produ ... _Bike_2008

http://www.winstanleysbikes.co.uk/produ ... _Bike_2008

http://www.winstanleysbikes.co.uk/produ ... d_Pro_2007

http://www.winstanleysbikes.co.uk/produ ... _Bike_2007

Thanks all.