This paticular setup may also be available with the 308 sub, but go for the 309, as it's far superior.
If you're looking to buy seperately, go for 4 902s, 1 905C centre and the 309 sub (all by Mordaunt short), but I think this will exceed your budget.
Shop around very carefully
Just one option, there are plenty of others and hopefully other members will give you some suggestions
Thanks for that - I currently have a set of Wharfedale Rubience tied in (2 x floor standers, a centre and 2 x bookshelf rears). I like having the floorstanders but would a new set e.g. Mission M33i be too big for the amp?