About MS Complete, it's available on the 28th (so technically today in the UK). I spoke to a guy on the phone yesterday and he said he thinks it's £150, which is a horrendous exchange rate unless our version has no deductible on accidents.
You can just call up the store and they will add it for you and explain the details, I'll be checking on it too, for official pricing.
As for John Lewis, when SP4 comes around I'll consider ordering from them. If they offer a student discount at least as good as what MS offers, I'll probably buy from them. At least they have a store near me!