router question

[fonzio]

hi and thanks for reading

looking to buy

Linksys AG241 ADSL2+ Modem/Router

on broadband through bt phoneline in uk, just wondering is this thing easy to set up, and once done does it mean i can ditch my speedtouch330?

also do i still need my software firewall mcafee?

hope you can help, dont know much about routers

thanks
fonzio