I was wondering if someone could offer me an opinion..

Basically the other month I picked up a rearly tidy ST170, I have a budget of about £3k to spend on her, with another £1k a month.. but I am now thinking of getting Christmas out of the way.. and picking up a nice ST2 in or around March.

Which do you think is best for tunning, my head says an ST2, but my heart has fallen in love with my ST170 already