I believe all the messages in 枫下ＩＴ worth your thorough reading. If you do finish reading them, you find the answer.
-sailor(Sailor);
2000-11-18(#14957@0)
You question is so big that we cannot answer here. I have two suggests: 1) Ask advice from an IT friend around you; 2) Browse the postings here and know what IT people are talking about. Good luck
-jabber(jabber);
2000-11-18(#14959@0)