Long cat5 run question

Will I be able to run a 200ft distance to another computer in another building?
Suggestions on what type of router to get for this endevour would be helpful.
It will be running outside. Can cat5 wire be buried?
This may be the wrong place to ask for this information, if so, please direct me to the proper source.

Thank you

"Ethernet networks: cables are still limited to a maximum of 328 ft (100 m) in length".
I have run a cat. 5 network cable to around 80meters buried inside a low density polyethylene pipe, you shouldn't just bury the cable directly .This link may help:
Category 5 cable - Wikipedia, the free encyclopedia.

You can get cat5 that's treated for UV/outdoors, but I'd suggest putting it in some conduit piping.

thank you