Cheapest place, or best rate for 2gb and 4 gb memory cards in Canada or US

I bought my 4gb Sandisk extreme III cards from Amazon. At the time they were the best price and one of the few who had them in stock.

See my post.
here.

It's not US but there is shipping.

I think Adorama.com has the most consistent cheapest price. I say consistent because others may have sales were the cards are cheaper, but those sales are gone as fast as they start. Adorama just seems to always have their cards at great prices. Their shipping is super fast too. Recently they have been the only place I've been buying from.

I second Rodney's recommendation of Adorama... Love them.

I, like Matt, did recently buy a couple of Sandisk Ultra II from Amazon though for 62.00 (which I find is a great deal).
Being that you asked for 2GB or 4GB cards, here is a link to the 4GB same spec for 38.00

on another note, I have read other Photogs that have had great luck with Transcend CF Cards and Amazon has them (8GB) priced low enough to give them a shot