that's an awful lot of minutes and texts! ...do you really need so many of both!? most contracts seem to favour one or the other as inclusive. I found the best deals on
http://www.e2save.com (carphonewarehouse online thing) ...try their clearance and 12month with 11 months free phones. You'll probably have to opt for either a lot of minutes inclusive or texts and then get bundles... o2 probably a good bet. If you're keeping your current phone you shouldn't mind if they give you a rubbish phone