If you have DSL internet, you can use a WiFi router with it. That's usually provided by the phone company.
comcast is better than DSL because it is SO FASTER but you could like DSL if you want to sit there to download something for 2 hours
To my knowledge you cannot connect your xbox w/built in wifi to a dsl connection without a wifi converter
Cable is considered better than DSL. DSL speeds can vary greatly and install prices are higher.
please consult Nintendo
Yes if you are able to sign in to the Playstation Network and your WiFi is cable or DSL broadband
Use WDS (Wireless Distribution System) function of your ADSL router.
If your ISP does not provide you with a router or if your DSL modem does not have wifi functions, yuo would need to purchase a router yourself to have wifi. Sometimes you can ask your ISP, and they have one for rent or you can purchase it from them. ISPs like IVC telecom gives you several options since a lot of people prefer to use their own router to set-up their own home internet network.
Broadband cable and DSL WiFi or ethernet connections
If you are looking for speed, regardless of the cost, cable is going to be better than DSL in most cases. Even though DSL has improved, cable usually has a faster rate.
DSL Extreme is designed to be superior to DSL; offering faster internet services. If you feel that the benefits are worth the cost, you may consider it a good investment.
Start with an ISP of Cable broadband or DSL then purchase a WiFi router