only way I know of if it's a large file is to store it on youtube or photobucket
Last November Youtube announced that they were testing out encoding videos at higher resolutions (with better audio as well). To access the higher quality video, all you have to do is add a small "tag" to the end of the existing video URLs. Try adding "&fmt=6" to the end of the address line and you can bump the resolution from 320x240 to 448x336. Add "&fmt=18" to the end of the URL, and you might get an MP4-encoded version, with better audio and a 480x360 resolution. Note: This works best with recent videos.