That seems like a good solution. Do you have any recommendations for a WAP ? I like the look of the ASUS RT-N56U but it's £79.99 so I will look around first to see if there is anything cheaper that will fit my needs.
You might however prefer an all in one router that uses the N protocol with multiple antennas. These give significantly faster throughput than the old G protocol, and coverage due to the multiple antennas.
PCPro magazine did a comparison review, and they likd the RT-N56U for ADSL users. ThinkBroadband even reviewed the other model the 55U here: http://www.thinkbroadband.com/hardware/reviews/78-as...
If you want best performance, ensure both your PCs and your router support 3 stream N, and you have both 2.4 and 5 GHz support in the router. (I bought an ASUS RT-N66U which has that support but no ADSL modem).
The 5 GHz support is good for same room (and depending on your home, next door rooms) as it avoids interference from neighbours slowing down your transmissions. For example I have 45megabit FTTC, and I get full speed on 5 GHz, but often slowed down to 20meg or slower on the 2.4 GHz in the evenings when the neighbours are using their WiFi.
James BT Infinity 2
19/09/2012 - Speeds 49 / 8.2 Mbps - Sync 53 / 9.5 Mbps @ 470m
Huawei modem -> RT-N66U -> Switch -> PC/Mac/Linux/NAS/Phone/TV - last speedtest
13 years of broadband - 1999 ntl:(512k/1M)/BTbusiness(2M)/Metronet(2M)/Bulldog(8M/16M)/BE(19M/16M)/BT FTTC(46M)