lurch - I was in your position earlier in the year - looking at secondhand gear, trying to work out what was good value, and doing it all with little knowledge of what a really good kite actually looked like compared to a crap one

In the end I went with Best on their 3 for 2. I've been really happy - great value for money and people with a good deal more experience than me say they're the genuine article. You can either order them online or through Brownee here in Perth. He'll probably let you play with some gear first if you wanna try 'em out.
The big brands are definately getting cheaper too so worth looking around but probably not as good a value as Best yet, IMO.