I can suggest that he forgo the Xoom and pick up the Galaxy Tab 10.1 instead, which he's lucky is only being sold in the Best Buy in Union Square until the 17th.

Seriously, it's the lightest tablet on the market (technically - it's only about 3 grams lighter than the iPad 2), about 1.3 pounds versus the Xoom's 1.6.

There might be some native New Yorkers who know places to buy electronics, but I can't imagine the stuff he's looking for will be available at a discount anywhere.

If I were him, I'd also be waiting for the Galaxy S II instead of picking up an HTC phone now...
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Matt