Hello, I am a Management Student based in Phoenix and looking for a place to stay for 10 weeks from January first week onwards in San Diego San Diego (or surrounding area). I don’t have too much money to splash. In fact, a budget hotel would suit me fine. Preferably, if I can find a place from where commuting around the city is easy, it will be a great help.

Anyone has any suggestions?

Thanks

I think I know the place you are looking for. Try the California Suites Hotel. Its placed right in the heart of San Diego. You can reach any of the major attractions of the city in minutes from there. Besides, the food and service is good and the rates are better than most other budget hotels. This hotel usually comes up with some tempting packages every year. They might have something for extended stay as well. Check out their web site for more details. Hope this hotel suits your requirements. Check out the website of California Suites Hotel.
Good Luck.

I would suggest when you make hotel reservations, go for bed&Breakfast in San Diego and there's a way to check for the lowest price.

This site will help you find the lowest price in accommodation:
San Diego Hotel Reservations

And I would suggest before making any reservations, you read this article from squidoo.com
San Diego Hotel Reservations Guide

And here's many tips about San Diego:
San Diego Travel Tips