Yes you would still need a DSL modem as paulp said. But that shouldnt pose a problem as this is already supplied by your DSL provider.
I'm not very sure about the exact model number but I did set up a LinkSys Wifi router sa bahay ni kumander and ok naman. It took a lot longer than expected though kasi nagloloko yung crypt key and SSID. Everything worked fine when I turned it off however. If your neighbors are not that close to you, maliit lang naman range ng router e, so theres no need to turn the security on unless you really want to.