beachBOYken:the thing is i dont mind getting second hand , but where do i look as im not keen on ebay also if im going to spend £400 on a new or used amp it has to give me better performance from my nad c320
Get Googling (or whichever search engine you like) and enter soemthing along the lines of used hifi, or secondhand hifi and you'll get a listing of a whole pile of independent UK dealers coming up first (make sure you select UK only assuming you're in the UK), also see the likes of the BADA Marketplace too.
Many dealers will take the stress out of secondhand buying by offering a three, six and in the odd case, a one year warranty. No need to trip down Ebay Street if you don't want to.
To give you soem pointers, have a look at the likes of Vickers Audio (York), Retro Reproduction (Edinburgh), Movement Audio (south west), Shadow Audio (Glentrothes), Sound Organisation, Big Ears Audio (web) and so on. All the best.
(Me? That's a nice Creek deal from Superfi, have a look and see if Hughes Direct in East Anglia are doing something similar - they're not well known nationally, but I got my CD player - see my sig) for less than half-price boxed and brand new; highly recommended).