Remember the lev-trains of the Japanese and their magnet experiments where they lift an object up only by the use of electro-magnetism and draw a sheet of paper underneath, between the lower and the upper physical bodies.
You should also have in mind the relative small size of the photon and the power of the elctro-magnetic field because I think it's fairly feasible.
Now, how this is done? At least for the calculation, it's fairly known how much pull the gravity of the Sun generates and the Planck's Mass(?) of the Photon should also be possible to consider. Then it's just to add the numbers and calculate what it takes to bend light. I also think this can be done in the classroom!
[Edit, Unsp.:] Wikipedia on magnets: http://en.wikipedia.org/wiki/Magnets! [End of edit.]
The calculations are up to you to make, but at least for now, I remain optimistic (partly because I've seen it demonstrated in our classroom while finishing upper secondary school having the physics class. Rather this than any negative demonstation I can recall or heard of). Thus, kill the negative notions you read about on the internet, please!
I'd love to hear about your own searches. I haven't come up with the positive results just yet.
I'm also writing this primarily for public education and quenching myths of people who cite uncertain, novice sources.
So here you are! You have, at least, the calculations! Cheers!
[Edit, 25.02.2011:] The calculations:
Numbers to begin with.
Earth's gravity - 9,81 m/s2 (seconds in 2nd power), this is Earth's "g". "G" is 1 kg x 9,81 m/s2 = 9,81 kgm/s(2)
Earth's mass - 5,974 x 10(24) kg (10 in 24th power, by kilograms)
Sun's gravity - Radius - 6,96 x 10(8) m (10 in 8th power, by meters)
Sun's mass - 1,99 x 10(30) kg (10 in 30th power, by kilograms)
Assumption - the gravity of the Sun is proportional to Earth's in terms of mass (given by kg)
Sun's mass divided by Earth's mass times (x) Earth's gravity (g) equals Sun's gravity
Thus gravity of the Sun, finally - 3,331 x 10(5) x 9,81 m/s(2) = 32,677 x 10(5) m/s(2)
From here we need to find the Tesla equivalents or Newton equivalents or that which is relevant and the best for the calculations.
(I've used constants from "Fysikktabeller" (Tables for Physics) by Cappelen Damm and it's free and downloadable from the internet.)
More later.
[End of edit.]