I'm surprised this hasn't been mentioned much on the forum.
Have already set up an NS&I for 07/08 allowance, and about to transfer my existing ISA to get a better rate.
Anyway, the spec:-
balance £9,000+ 5.75%
Includes variable rate bonus, currently equal to 0.50% gross p.a. which is payable until 1 May 2008. Rates are guaranteed to match any increase in the Bank of England base rate until 1 May 2008.
So as long as i remember to review it next year, seems like a good bet.
But if anyone knows any pitfalls then please shout before I sign on the dotted line....
cheers!