It's your choice...but I'd never purchase a property in a place I didn't know. Why not come over, rent a place for a while and actually figure out if it's worth buying in that area? You might want to see what types of properties are available and what they are like - property is VERY different from US as is the process (I'm in the midst of it all so I have experience with this).
But if you decide to go through with it, here are a few things you can check out:
1. rightmove.co.uk - asking prices for the area
2. nethouseprices.co.uk - sold prices from the Land Registry
3. if you want to look at more info about a specific house, you can go to the land registry and pay for that info (£3)