I'm going on some walking trips this summer in the UK and need to buy a decent Tent for me and the girlfriend.

I've never done this before so I'm not sure about what I'll need when I'm there.

For example will I be wishing I had a lighter tent or will I be craving something more comfortable to rest in.

The terrain is hilly, mixed off and on road, temperate climate.

Anyone here have experience with walking and camping that they'd be willing to share?

I'll post a couple that have caught my eye so far. The budget isn't great only up to about £70.