I got myself a Foxwell NT-500 VAG diagnostic tool, which as far as I've found so car, is just as good as VCDS but not as easy to use what with not being on a laptop. I'm still learning its full features but its around the £100 price and if you're not looking to code in equipment (although it is capable, just not as easy like I said) then I'd opt for that.
I have used VCDS briefly myself, and I'm not going to deny its the best and worth every penny, but the NT-500 does everything I need and earnt its cost in savings (from not renting VCDS from people) in the 1 year I've owned it already.