I haven't noticed that Provigil is too terribly hard to get, once Doctors know that it isn't an Amphetamine, they will usually prescribe it... Remember though, it is usually prescribed in dosages for narcoleptics, so only half a tablet is needed... Ritalin, well, I guess that you really need to either be ADD to get that, or be willing to enter into a black market arrangement.

Selegiline goes well with caffeine.

Unfortunate association with cigarretes aside, nicotine lozenges or patches are easily accessible and provide some benefitial effects too, depending on what kind of performance you desire from your brain at the time. I don't recommend actually spiking the coffee with a nicotine lozenge. But, come to think of it I've never tried. Given how habit forming coffee is already, adding nicotine to the mix would be... interesting to say the least.