How to download Youtube video?

Sometimes on internet, there are very favoured Youtune video. Is there method download them to keep in personal computer?
Thanks.

所有跟帖： 

• 我是拿這個當的 -esperanza- ♀ (68 bytes) () 03/21/2009 postreply 14:35:18

• keepvid.com -vtcc- ♂ (0 bytes) () 03/21/2009 postreply 17:57:54

• 回複：How to download Youtube video? -Zixun- ♂ (34 bytes) () 03/21/2009 postreply 23:41:11

• VDownloader. You can find it @download.com for free. -CoolHorse- ♀ (0 bytes) () 03/22/2009 postreply 21:46:48