This will only last for a while until Megaupload changes their site so take advantage.
If the download link is say:
http://www.megaupload.com/?d=TADMUWNB
Just add mgr_dl.php after the .com/ so the new link becomes:
http://www.megaupload.com/mgr_dl.php?d=TADMUWNB
No captcha, No countdown, Full speed
Have fun