Congratulations and welcome to San Diego! There's an abundant selection of housing that will fit your needs in the UTC area. To find a nice condo, I'd start monitoring Craigslist (sandiego.craigslist.org), even professionally managed condos advertise on CL. The other option is to go with an apartment complex like Nobel Court, Archstone or Costa Verde. With condos you'll have a better opportunity to find something with a little nicer interior amenities, like granite counter-tops or stainless steel appliances. With apartment complexes you might have a better response time if there's a maintenance issue. Being winter-time you'll have a little more negotiating power then summer-time, when the bulk of the UCSD community is coming/going, so feel free to be a little more firm in your demands.
If you have any specific questions feel free to contact me directly, I've lived in the area since 2005 and own a few rentals in that area, so I'm very attune to that local market!