Got it from Living Seas and paid Â£189.99 for it, with free postage. There doesn't seem to be many people selling it to be honest. Living seas were the most on the ball about updating their website about having it in stock so seemed they deserved my custom (I think they only got them in yesterday).
My only hesitation is the size of the thing, there has been no info on the net about how big it is (although I expect it to be a fair size, but a better shape than the FX5 which has the stupid motor sticking out the side). The intake and outlet pipes might also be quite large according to the Tetra manual. Will have to see, would like to use cal aqua glassware if the pipes are the right size.
I don't have the space for two filters and I like the ease of only have one to clean. I'll not be over loading the tank with fish and I have spare externals if things go pair shaped with it. I've got an EX 600 (thanks to PFK ) that is working perfectly, which is also my I went for the ex2400 over the FX5.