Hi, and welcome!!!!
I did a VERY similar thing to you. I sold a modified Escort Cosworth to get my Is200sport. Thought EXACTLY the same as you - about the power, the handbrake, all that sort of stuff. A year down the line and I think it is an AMAZING car. I miss the enjoyable drives I used to take with the Escort (you know, midnight, cold weather, empty roads, country lanes..oh what fun) but at the positive end I have reliablity, economy, cheaper insurance etc. etc.
Actually, my car got bumped last week (see http://www.lexusownersclub.co.uk/forum/ind...topic=10401&hl= ) and I'm driving a C-class avantgarde. I can't wait to get my Lexus back. The Merc's a good car, and is growing on me, but don't find it a patch on the Lexus.
You may a good buy matey, and you will be chuffed !!!!! (if not already :) )