Pretty much all laptops in the past 5+ years can easily run Adobe suites. It all comes down to budget and personal tastes on the rest. The things I'd specs I'd look for is the fastest CPU 1st, the most RAM (or upgradeable RAM), a GPU (graphical card that's not shared), then harddrive space. Personal-wise, size would be important. If you travel weight and battery life would be important. The bigger the screen the easier you can use the programs, but the heavier and larger they would be to carry around as well.
One things I find most surprising is that a good percentage of students don't use a mouse with their laptop. Invest in a good mouse that's comfortable, preferably with extra buttons. A Windows-based PC is as good as a Mac running these programs. Neither is better, they both work great with Adobe just fine. If you want to run any 3d CAD program, you WILL need Windows.