Tablet on the way - waiting for the Customs lottery

The tablet I ordered from brandsdragon.com is finallt in Canada and waiting for customs clearance and any additional charges. I have no idea what additional charges I will have to pay. Its one of the biggest problems with ordering overseas. I've ordered dozens of little items from the east w/o attracting the attention of Customs but this time I may get hit with a significant charge.

2011-03-23 00:05:00 GUANGZHOU Released from Customs
00:35:00 GUANGZHOU Despatch from Sorting Center
2011-03-26 03:04:00 CANADA VANCOUVER Arrival at Sorting Center
2011-03-26 03:04:00 CANADA VANCOUVER Handed over to Customs