In which case you can choose your favourite frame and cherry pick the best bits from your existing bikes to make something you really like.
I would consider having a cheaper shopper/commuter though. I have three bikes, two nice ones and a cheaper one, an old Kona Fire Mountain, which I use for riding to the gym or popping to the shops, where I might need to leave it locked up unattended for a time. I keep the "shopping bike" in good running order, but don't bother too much about keeping it clean and shiny so as not to appear too attractive to thieves. It also has full mudguards and a rack, so it's not a particularly handsome thing anyway.
Lastly, whatever you decide, I'd get a good lock, a proper U lock, not one of those crummy cable locks. I have one of these:
http://www.cyclingweekly.com/reviews/bi ... -bike-lock. The only downside is that it weighs as much as an anchor.
