Hi sweet78,
Laptop-advantage does have a lot of branded laptops to choose from and some of the latest models too. This company has been online since 2006 and there seems to be mixed reviews about them although it seems there are more positive feedbacks available than negative ones.
Here are a few for your reference:
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I have sent them an email on your behalf, hopefully they will reply soon. (fingers crossed) I have tried calling their 1-800 number but their lines seem to bit quite busy.
Based on what I read on their site, dropshipping may be out of the question. They have stated quite clearly that they only ship to the address that matches the credit card's billing address.
Hope this helps :)