JB HiFi is offering this 2701HGV-W 4 port wifi modem/router in their latest catalogue. It's branded BigPond but is not locked to their network AND it's the current model. There's some discussion of it on Whirlpool forum: http://forums.whirlpool.net.au/forum-replies.cfm?t=1123643&p…
For $30, which includes a pair of ADSL splitters & various cables, you can't go wrong. It even has VOIP.
Great price!
Cheapest wireless ADSL2+ modem with VOIP once unlocked.
FYI, tinkering is required to unlock the modem, VOIP also requires software unlock.