a) BHS own brand / home build for ~ £180 / 1,500g; or
b) OTP 3t for ~ £300 / 1,900g.
The only option c) I think I'd be interested in would be something like a random exceptionally good deal - like that Stans Alpha deal one a while back.
The logic is that to my knowledge the 3t are the only deep and wide OTP wheels (and rims for that matter) available that don't cost bucks. BHS seems like the best budget light stuff out there from general internet consensus.
you can get some campag zondas for about the same price as the 3t and they are a lot lighter and probably better made - campag has a long history of quality wheelmaking