I quite like Bishops Stortford. It's one of those places which is big enough to be interesting but small enough to retain some character.
The official guide is here:
http://www.localauthoritypublishing.co.uk/councils/b_sto rtford/index.html
There are some suggestions for where to eat (and a list of pubs) here:
http://www.bishopsstortford.org/eating_out.htm
A list of leisure activities is here:
http://www.bishopsstortford.org/leisure_activities.htm
(Note that some activities are quite some distance away).
If there's any chance that you could arrange some cheap accommodation overnight (see here for an accommodation list:
http://www.bishopsstortford.org/accommodation.htm ), and if there's a couple of weeks or so before your visit, then the greatest attraction that Bishop's Stortford has to offer is its proximity to Stansted Airport. There are lots of places you can visit for a day trip, often for only 1p each way! (OK, it'll be about �30 quid return with the taxes but still a bargain). See the Ryanair website for further information. (If this idea takes your fancy, just post again for some suggestions of where to go - Copenhagen, via Malmo, would be near to the top of my list).
Chris