i'd keep the 125i bro!
RWD > FWD ... you can have much more fun in your car imo.
and if you are looking at S3 pricing territory, why not go for a 135i? i'd take that in a heartbeat!
cheers man..
on a side note: sigh this section is so droog lately...
i think i'm the only one that checks here a few times every day or so...