No contracts I say, thats why I'm with iinet on the Lite scheme with the fax line on iiphone for $50 month:
<TABLE class=table_generic cellSpacing=0 cellPadding=0><TBODY><TR><TH> </TH><TH>iibroadband2 monthly price</TH><TH>iiphone monthly line rental</TH><TH>down/up speed (kbps)</TH><TH>quota (peak + offpeak)</TH></TR><TR><TD class="ctl_primary primary_text line_dark" noWrap>pay as you go
with iiphone</TD><TD class="light line_light">$29.95
($59.95 cap)</TD><TD class="light line_light">$29.95</TD><TD class="light line_light">up to 12000/1000</TD><TD class="ctr_light line_light">500MB, then
$0.06/MB</TD></TR><TR><TD class="cbl_primary primary_text" noWrap>pay as you go
without iiphone</TD><TD class=dark>$39.95
($69.95 cap)</TD><TD class=dark> </TD><TD class=dark>1500/256</TD><TD class=cbr_dark>250MB, then
$0.06/MB</TD></TR><TR><TD class=gap colSpan=5> </TD></TR><TR><TD class="ctl_primary primary_text line_dark" noWrap>starter
with iiphone</TD><TD class="light line_light">$39.95</TD><TD class="light line_light">$29.95</TD><TD class="light line_light">up to 12000/1000</TD><TD class="ctr_light line_light">2GB + 2GB</TD></TR><TR><TD class="cbl_primary primary_text" noWrap>starter
without iiphone</TD><TD class=dark>$49.95</TD><TD class=dark> </TD><TD class=dark>1500/256</TD><TD class=cbr_dark>1GB + 1GB</TD></TR><TR><TD class=gap colSpan=5> </TD></TR><TR><TD class="ctl_primary primary_text line_dark" noWrap>light
with iiphone</TD><TD class="light line_light">$49.95</TD><TD class="light line_light">$29.95</TD><TD class="light line_light">up to 12000/1000</TD><TD class="ctr_light line_light">10GB + 10GB</TD></TR><TR><TD class="cbl_primary primary_text" noWrap>light
without iiphone</TD><TD class=dark>$59.95</TD><TD class=dark> </TD><TD class=dark>1500/256</TD><TD class=cbr_dark>5GB + 5GB</TD></TR><TR><TD class=gap colSpan=5> </TD></TR><TR><TD class="ctl_primary primary_text line_dark" noWrap>medium
with iiphone</TD><TD class="light line_light">$69.95</TD><TD class="light line_light">$29.95</TD><TD class="light line_light">up to 12000/1000</TD><TD class="ctr_light line_light">20GB + 20GB</TD></TR><TR><TD class="cbl_primary primary_text" noWrap>medium
without iiphone</TD><TD class=dark>$79.95</TD><TD class=dark> </TD><TD class=dark>1500/256</TD><TD class=cbr_dark>10GB + 10GB</TD></TR><TR><TD class=gap colSpan=5> </TD></TR><TR><TD class="ctl_primary primary_text line_dark" noWrap>heavy
with iiphone</TD><TD class="light line_light">$89.95</TD><TD class="light line_light">$29.95</TD><TD class="light line_light">up to 12000/1000</TD><TD class="ctr_light line_light">40GB + 40GB</TD></TR><TR><TD class="cbl_primary primary_text" noWrap>heavy
without iiphone</TD><TD class=dark>$99.95</TD><TD class=dark> </TD><TD class=dark>1500/256</TD><TD class=cbr_dark>20GB + 20GB</TD></TR></TBODY></TABLE>
There are a few marginally better deals available but they all seem to have contracts. Don't buy a modem off an ISP, get one from your local geek for a $100 and save yourself the brass.
Cheers