Go Physics
I would suggest Physics. For a Computer Science degree you might be able to take classes that are not normally in the curriculum of the normal physics majors IE. They may be slightly easier.
Remember, for making a living in IT, learn the newest applications and languages. Just go to Dice.com and find where the jobs are.
You still can never go wrong by getting into SAP. Buy yourself an SAP system from someone on EBay, install it yourself on your own dedicated Win2K3 machine, MEMORIZE every manual and CBT you can find and by the time you graduate and the managers find out what you did during your first interview, you WILL be hired at a few more bucks per year than the other graduates.
SAP technical developers with 4-5 year experience get $100 per hour (depending where you are willing to move)
Hope this helps
Michael