Yeah the brakes take a bit of getting use to, but once you've adapted to s lightly more senstive approach they're pretty damn amazing. All of the models (even the lowly ones) had discs all around with vented up front for the more powerful models. There's no servo as the brakes, PAS and suspension all use the hydraulic system. Best brakes I've ever had on a car!
They are very comfortable indeed and come with plenty of kit as standard. Plus with ~ 160bhp/tonne mine goes pretty well too!
Most of them are pretty cheap - between £100 and £700 for the normal models (including the GTi). The 16v is a bit more - up to £1200 if you wanted a mint one. Also the prices of the 16v's are being pushed up because the XU9J4 engine in them is very popular upgrade for 205 owners wanting more power, which is a shame because a lot of decent cars are getting pulled apart for them
I'd love a CX Turbo, soooooo cool

Although I'm leaning towards a Xantia for my next move - a 2.0T or a v6. Apparently the suspension is pretty amazing - I heard about one test where one out cornered an audi 1.8T and a 3 series so they put it up agaisnt some really exotic cars and it beat a lot of them too!