I have ordered from this site already I picked up 2 2 gig cards for $5 plus shipping. I would not endorse it if I have not ordered myself. I also endorse this site on the site I own Officer Resource I would not put my name on it if it were not legit.
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The adapter that's used to read the MicroSD card in an SD slot. It's not required for use on the phone, but may be helpful if remove the MicroSD card from the phone and try to access on your computer. The adapter is pictured on the page linked by the OP, but it's probably expired by now.
I just ordered two 2Gb cards (for wife and daughter) from NewEgg.com. $5.99 each with free shipping. You have to look a little for the free shipping, but they make it easy. On the advanced search on the left, one of the drop boxes is "Useful links". You can see only items with free shipping through that.
As far as being reliable, NewEgg is one of the most trusted sites on the net.
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