http://www.rfactor.net/ is where I got it from, you can try the demo first, and if you like it get an unlock coupon then activate it, as far as I know no more downloading to do (except for addon tracks/cars etc).
Kind of the same story as flight sim though, you can't get the full experience with a keyboard. The plus side with rfactor is, there's no payware addons (well, if there is there isn't many at all) I remember one though, he was charging $10 for a track, then an extra $8 for a night version, and another $8 for 3 different layouts. Didn't go down well at all.
Be great to have a bunch of us racing it though, NZFF.org racing team. Maybe if we get enough a 24 Hour race of LeMans? Ok, maybe not haha. I don't think painting the cars up is that hard either, at least not like FS. As far as I can tell, it's a template, then you can paint what you want. Might have to give it a try myself.
Anyway, I need some sleep
