It's the Netgear DGN 2200. At the moment everything connects if I just go for WPA-PSK but I get the router's name with a cross beside it if I try the dual option.
Dell Studio 15 with Win7 64bit and 4GB RAM
Belkin N cable router (VM 20Mbs)
Voyager 2100 via BT line (8Mbs) as backup
BT Option 3 / Virgin cable 20Mbs
IE8 and OE6 (Live Mail with Win7)