Small world eh? I live right by the university so not far away from you. Haven't been to Signal Hill yet but I've been to Bethune's Gully (on foot) and it does appear rather small. The Haro I picked up needs a little restoration, but I should be able to buy something cheap to get me back on the trails - unfortunately I had to sell all of my bikes after the shipping company doubled their quote a week before I left.
We are lucky to have a community bike workshop called The Crooked Spoke - it's behind the café at 111 Moray Place - come along if you need to use tools or workshop space. It's open Wednesday and Friday evenings; I'm usually there on Wednesdays. Urge 3 Peaks
is only a few months away. I won't be taking part though!