Claudine, does the route go through Cowbridge by any chance?
Cheapest and easiest train service I can find is £56 return via Southampton.
Not as currently planned, although it isn't set in stone - DZ is going to look over the proposed route, which at the moment passes about 4 miles from Cowbridge (to the East). I think it's quite unlikely that we'll go right through it though - that would be Plan D. You got pals there? It's a nice town in the daytime (with a cracking boozer) but nothing to get excited about at 1am and beyond...