I'd recommend the E36 3 Series approach, too.
Would you recommend the E36 over the E46 that Malt Vinegar posted?
What is the IS like?
Depending on the age of both and the engine of both. I'd not want an early E46 6-cyl due to the subframe issue, I think I also prefer the styling of the e36 over the pre-facelift E46, but that might just be me.
Not sure I'm a fan of the autobox in the e36 however. The ones I've driven were never that great.
Got a mate with a 328i auto, pulled the rear left subframe mount clean through the floor, auto seemingly is in no way immune.