hmm now we r talking..
If u have 2 Phone Line, 2 ADSL modem... then yes... its worth a try...
Just get 2 LAN card, or plug both with 2 USB or one in LAN other in USB
now in one ADSL modem make sure u change its defaul IP (thats 192.168.1.1) to 192.168.0.1
and the second one will stay default... 192.168.1.1
now asign or LAN card IP as per the modem u have connected..
in the both modem make sure all the connections (which can be found in SETUP tab) bridge except one which u change to PPPoE then input ur user name and PW... save all settings and Restart the modem...
now in network connection window of out computer, bridge the 2 LAN connection
this is the part what i tried at my place but failed.... because BSNL at my area didnt supported this... hope it works out with u...