Hi sjeffie91,

IMO the only thing that might hinder your dual boxing is your video card. The 7300 is not a good video card. You want a more gaming oriented card like a x600 or an x800 (8600, 9800, etc) but most laptops don't support upgrading the video card. My thoughts are that you may get by with all video settings turned down but I wouldn't want to play that way.
That said you can always download keyclone, get a trial account and see how it runs.
What kind of settings do you play at now with that card? (single boxing)