Well cheers guys for the advice, I spoke to Sky insurance today and was very surprised to hear my insurance would only be about £690 on a JSpec TT Auto, so now the hunt is on! I also checked for a Celica GT4 quote, as from here its either a GT4 or the Supra TT, and I definitely know which I'd prefer (altho a friend of mine has said he reckons he would go for a GT4 above the Supra, not sure if anyone here has any opinion on that?)
So yeh, I definitely can;t spend more than £6k, what I'm after is either a stock (or as close as I can get to stock), or very subtley (and tastefully) modded TT, be it auto or manual, JSpec or UK I'm not really bothered, going on your comments I'm not resisting the auto box anymore though, seems as though everyone loves it.
So time to trawl the classifieds, but if anyone either has a Supra for sale that matches what I want, or anyone wants a Silver Celica 97 (UK spec, which is not very common at all) in very good condition (totally stock) then let me know! Its had very careful owners and I don't think will let you down