My $0.02 - I was a physics major, got a M/S in math and physics (so you know the angle I'm going to take here!)... physically, it is mathematically impossible to travel FASTER than the speed of light. No way, no how. Einstein's equations prove it for me; look at the denominator of many of his equations (time dilation, for instance) where we have sqrt(1-v^2/C^2), if v even equals c (the speed of light) then your denominator is 1 - 1 which is zero, which is undefined (or "infinite", depending on your angle!). If an object's velocity would be allowed to be greater than c, then the denominator would be the square root of a negative number... an imaginary result. This cannot apply to physical SPEED.

Okay, with that SAID - while I think it is impossible for us to MOVE at a speed greater than or equal to the speed of light, I don't see why we can't WARP space so we can travel from point A to point B faster than the speed of light. This is also implied by Einstein, but by his GENERAL theory of Relitivity (i.e. the difficult one). Just find a way - it'll take a tremendous amount of energy - to FOLD space, pick the point you wish to travel TO, fold space, then travel across the fold! Simple, ain't it?

Now there's just the little matter of folding space... I just hope I live long enough to see it happen.