Went to Uni in Colchester. Who you seeing at the Arts Centre - it's tiny!
Mind, I left there in 89 and have only been back twice since for football, one a cracking 5-0 away win last Easter! 
Having said that, nothing had changed. It's a sleepy little town and bar one boozer on the High Street becoming a Firkin pub everything looked the same.
There's a lad on here who goes to Uni there now, but I cannae remember his name and he doesn't post regularly.
From memory, there's a train station right by the Arts Centre, but it's only a local line - if you're coming in via InterCity then that's on the outskirts of town. The Arst Centre is slap in the middle though. About a mile and a half walk.
As for interesting characters, late clubs, etc, see earlier line - it's a sleepy little town!
Pubs to avoid - Bull near the cinema, and the big one facing the top end of the High Street, can't rememer the name but it featured heavily in that 'Garrison Town' doc on Colchester recently. Even then, we still went in 'em though!