Step is very nice in the 335, DCT is even better, but if your price range will buy you the Dec 2006 car, then a 2008 DCT is going to be a lot more money. If you where looking at 2, 2008 model cars I would go DCT for the same or a bit more money, but the Steptronic shouldn't put you off, it is very good for an autobox!
2008 E93 335i, MHD, HPF IC, Injen Intake, AR DPs, Alpina TCU Flash
2016 X5 M-sport 35i JB Stage 1
2013 Mercedes C63 AMG, ROW airboxes, power pipe, Eurocharged V6 Flame tune 540 HP