wrt54g is actually a really old model which has been perfected over the yrs
What I feel may be the USB is not the best solution for you. Try out LAN and check it out.
You can connect ur PS3 on one of the modem ports.
If you LAN port is already being used or you want some networking solutions let us knw what you wana do.
Oh .. sorry I though you have more than 1 LAN port on ur modem.
K yup if you wana use both together then get a 4-8port switch. Its not expsive but better to get more ports so that 2morrow u can create small network if you want to. As of now you need mim 3 ports to inter-connect Modem,PC,PS3.
Yes you can get it at Croma Electronics for 1279 Rs. i think it should be the same in banglore too. Btw also checkout Netgear dg632 which is for 1480Rs. Good one .