If I was only racing GT5 I would get the T500, if money is an issue go with the G27, both sets include pedals. I have a T500 and a Fanatec Elite, I prefer my T500.
The DFGT IMO is the best value for money wheel... great for starters but the pedals arent that good. But if you want the best for GT5 IMO its the thrustmaster T500 (its the GT5 official wheel) and the DFGT was the GT5 prologue official wheel (being the official wheel is diferent than being officially supported - it means that the game was designed with that wheel in mind)
GTP_geoffI don't want to be pedantic, but I'm sure the wheel was developed with the game in mind? I'm pretty sure the wheels come after the game etc.
Sorry, I like the truth.