Came time to replace our tent after many years hard service , and I did demo a Banshee at GoOutdoors but immediately went back to the Halo as the Banshee felt dark and cramped by comparison. So I’d lways recommend Vango Halo 200 for that much dosh and for your requirements. Self-supporting dome structure, all-in-one pitch possible, separate stowage porches, superbly adaptable venting options with the 2 separate exits that also make it more than ideal for two IME. You can also use the fly and poles on their own for bivvy-type backpacking/backpacking or just a shelter. It’s a well thought-out, versatile setup and very reassuring in near-gales. Decent head-room helps loads.
This similar thread a few weeks back was similar, so quite a few suggestions:
http://singletrackworld.com/forum/topic/spacious-light-2man-tent-under-200
If you can go to £150 then the Halo 300 is a great price for an ideal low-level basecamp that should last years (mine did, even in heavy weather)