Whoa. You're about 4 years behind the times!
OK, for internet access, you pretty much have three options:
1. Cable Modem (via your local cable TV company)
2. DSL (via your local phone company)
3. FiOS (from Verizon)
Cable Modem: You're sharing bandwidth with your neighbors, but this may not be a problem on a well-designed system. Note that some cable companies are better than others -- TimeWarner has been good to me. I've heard all sorts of bad things about Comcast. Speeds up to 10 megabit per second (allegedly)
DSL: Your connection isn't shared, but the data rate depends on how far you are from the local office. The further away you are, the slower the service. Practical limit is 7km (electrical length, not as the crow flies). Speeds up to 3 megabit per second (allegedly)
FiOS : Fiber optic connection to your house. Not available in many areas. Speeds up to 50 megabit per second (true, but only if the site your downloading from also has a connection that fast)
Note that all the above technologies are asymmetric -- the download speed is many times faster than the upload speed. This is OK because most people transfer much more data from the Internet than to the Internet.
What this gets you is basically "internet dial-tone". You'll want additional equipment to protect your home computer from outside attackers and to use a wireless connection in your home. You can get both in one device by buying a wireless router. The Linksys WRTG54 is a good buy.
You might want to read over this info:
http://compnetworking.about.com/cs/h...menetguide.htm
Chip H.