Another help a nebie choose a bike!!

daff Posts: 81
edited August 2010 in MTB beginners
Hi, I'm a newbie here trying to get back into biking
I'm also looking for a £500 hardtail.
I've got a Carrera Kraken that I'm in the process of exchanging with halfords because the 18" is a little too big, but see that Wiggle are advertisig this: ... 5262/#more
for £450
Is it worth the £100 more, do I just get a smaller Kraken (Sram 5 & suntour sr forks & only £343 at the minute) or could I do better elsewhere??
Thanks for your help