Just to share my experience on getting my 1st roomba:
28/02/08 - iRobot Roomba 4296 Remote Schedule appeared on woot.com
28/02/08 - very excited! Quickly register as wooter and wooted for 1 unit.
28/02/08 - then only realised woot does not accept oversea credit card.
28/02/08 - panic, disappointed.... stay calm...
28/02/08 - ah huh! Found out woot accept paypal.
28/02/08 - signup paypal account at paypal.com.
28/02/08 - successfully wooted for 1 roomba. (my very 1st roomba)
28/02/08 - provide woot with vpost USA address. (my very 1st online purchase from USA)
28/02/08 - paypal emailed me the payment details. (US$99.99 + shipping $5 = US$104.99, equivalent SGD$150.44)
28/02/08 - i forwarded the payment details from paypal to vpostUSA as my invoice submission.
29/02/08 - vpostUSA emailed me acknowledge receipt of my invoice.
29/02/08 - found out that i can track the status of your woot delivery as early as 2nd day after i wooted.
29/02/08 - Go to fedex.com >> Select your country. >> Move mouse over the track tab and click on track by reference in the drop down menu. >> Leave account number blank >> Enter your Woot order number in the reference box. >> Enter the ship date +/- 15 days. >> Enter your destination country. >> Enter your destination zip.>> Click on track.
01/03/08 - realised the invoice amount appears in my vpostUSA a/c as US$150.44.
01/03/08 - request vpostUSA to amend the record, it should be US$104.99.
03/03/08 - and vpostUSA change the amount to US$140.99, OMG!

03/03/08 - inform vpostUSA again, the correct amount should be US$104.99!
03-10/03 - tracking my woot order at fedex.com
11/03/08 - finally reached vpost USA.
12/03/08 - emailed vpostUSA to match my invoice.
13/03/08 - vpost USA responded, size:62X42X12 cm (5.2kg), actual weight=5.2kg, so total shipping cost = SGD60.87!!

13/03/08 - made payment to vpost using the $15 promo code:083DAH2 so final shipping cost paid= SGD$45.96
13/03/08 - compare to comgateway.com, shipping cost for 5.2kg should be US$32 (SGD should be around $45 only)
13/03/08 - thereafter... the tracking record in vpost a/c shows "Processed in U.S.A/Japan", tracking record in speedpost shows "Information Not Available"
17/03/08 - waiting for my roomba to arrive.... waiting... waiting....