It would also help to know what your ambitions are.
If you are going to spend your time local soaring within a few k of your home airfield, then some variety of K6 would be cheap and you could have a lot of fun. Or a Pirat, if you have somewhere to hangar it or are OK with the heavy centre section rigging.
If you want to fly cross-country then, although K6s et al are perfectly capable, it takes quite a time to build skills to a level where you're completing a reasonable proportion of tasks. Starting off in something of Grob Astir performance or better makes this much more achievable. Beyond that, it's down to budget, your size (for comfort) and the kind of flying you like to do.
Importantly, as in the Skylark II thread, regard the trailer as being at least as important as the glider. A good trailer means you can rig easily and feel confortable flying away from site. A poor trailer can mean you don't even fly locally.