I've been keeping a list of CS internships/research opportunities on delicious, maybe you'll find something interesting there: http://www.delicious.com/psawaya/Internships?page=1

Also, I don't know if you're looking for an internship for the summer, but if you are, check out the Google summer of code program. You'd learn a lot more about programming by contributing to open source than you would at a helpdesk, plus you get paid a little.