Hi, mine is satin black and looks nice but the only reason i painted it that colour is because i picked up a 5litre tin dirt cheap from in-xcess.
Silver would look fantastic if you get the finish right but if you dont it wont
I used some upol weld thru primer on some of the chassis (its silver) and it looked lovely.
some people say gray is the colour to use because it shows up cracks
there was a simillar poll on lcb a while back and most people went for black ive seen green orange red silver white and black
If you go for anything other than black you will stand out from the crowd but make sure its for the right reasons and it fits with the rest of your colour scheme
Ray
p.s. why not do a bit silver and see if you like it? black will cover over it if you dont