Thanks for the replies guys, I looked into the Drayteks and...even used they're far too pricey
With regards to Zyxel, I've had issues with them in the past.
So in the end I've done something I don't normally do...
I've picked up a used 7800n on fleabay (in box with all manuals and accessories) for a little under 60 quid...I'll see how that goes...it's only 2.4ghz n 300Mbps but...wireless speed isnt my main concern since it's only mobile devices that use it.
I'll probably post back my thoughts on it anyway, thanks again for the replies