Hi, as this is my first post, please be gentle

.
I am looking at changing my current car (a Focus ST3) for something a little cheaper to run and doesn't cost £430 to tax, and thought that a MK5 Golf GTI would be ideal. So, i have found a late 2005 GTI , 3dr DSG in Diamond black, with SatNav, Zenons, centre arm rest, MFSW, highline and 18" Monza 2's (NO leather or cd changer though). Its done about 30k and is up for £16999 at a VW dealer, i do think it maybe overpriced, but what is the general consensus on both its spec and pricing?
Neil