Does anyone think time travel is possible?

Yes. It sounds very much like chronokinesis(the ability to slow or speed up time). There's also Chrono-telekinesis which is a part of teleportation. Moving an object through time.

I am able to slow down my perception of time at will.

As for your question about actual time travel I am less sure. I know that scientifically time travel forwards in time is possible. Because time is relative to speed the closer one gets to the speed of light the slower time is. So for example if you were to travel for one year at the speed of light you would age one year and the rest of the universe would age around 4000 years.

If you had a time machine would you:

a) go back to a distant time period
b) go back and alter your own past
c) go to the future

I would go to a distant time period like medieval ages, renaissance or early modern age but I would be SUPER careful though.

i would become my own grandfather... XD! jk
id travel back to jesus' time and have him teach me the ways he done his miracles and learn his teachings 1st hand then id travel to ancient egypt and observe how they built the pyramids

the same with me, I would go back in time to meet and talk with jesus

I would go back in time and invent many things before they were invented, like the steam engine, the light bulb and the song bohemian rhapsody.

we should leave time travel alone, no one know what will happen when you step back in the past or future or meeting your self

Time slowdown... I know how to do this, you must use almost of your energy to boost your own speed and awareness around you. And everything slowdown...
I played the game jedi knight 2 & 3, the character boost their speed X2 and running like a boss.

this is must be syncronicity again, I just watched this video, would like to share with you guys.
about time travel http://player.pps.tv/player/sid/3D5DGSYXGI4M/v.swf

Time travel is possible but is restricted by the law of universe. It is possible because:

1) we can perceive past/future (by teleporting ideas)
2) we can teleport

The logic is simple. If there is another space, then the time is no longer universal as it applies to different space/dimension independently. Ergo, you bend space, you can bend time.

BUT apparently we haven't seen ones from future yet. It is conceivable that there is a universal law that restrict one to time travel although it is technically possible.

PS existence of another space/dimension is the only logical explanation for teleportation.

PS2 time presumably goes differently in different dimensions as spirits are known to perceive time differently.