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I am not a Nigerian nor Live in Nigeria but THANX!!!

Nice concept, methinks!
First thing I'm wondering though, is why you've narrowed your clientosphere(Holiday shoppers & About to weds)

One bottleneck you'd face is Customs. If I would have to pay the tariffs myself, that would be a downside.

Suggestions

Services.
Make sure you add a realtime phone-in service. Most Nigerian customers want to communicate before they make a purchase.
Concerns
You need to give me some kind of guarantee that the stuff I see online is what I get.
Products
While clothes and accesories are a definite, I'd recommend electronic gadgets- Laptops, Ipods and the likes.
Pick Up
I'd suggest you'd add the option of pick up in other UPS locations around the country as well. I think that's pretty simple.
Registration
Sure, why not.
Club
Coool, but no thanks. Spam!

And let UPS be UPS. Meaning 3-5 days shipping max!

Few companies tried out something similar(not half as good as yours though) but I don't think it was so successful for obvious reasons.They had a relatively poor interface + no publicity + a couple other reasons.
I think this will be a success. You've already tackled lots of the potential pitfalls. I saw the template you got, and its a masterpiece.
Once you get the website started, holla!!! Best wishes.

Your customer base will increase greatly if you can add interswitch cards (ATM Card) as part of the payment options.

I guess it shouldn't be too difficult.

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Still on Customs, be sure the details are worked out and made clear to would-be customers. The last time a partner sent some stuffs down here via UPS, I was made to pay custom charges costing almost the price of the items. It was not negotiable and was either you pay or forget the goods.

All the best!

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c. what type of products do you shop for when you are abroad?


Children's stuff.

Clothes, Carseats, Diapers, 98% of my shopping in the last three years has been on kid's stuff. I suggest you have a look out Children's Place.

There are also many things (those nice and simple home and office furniture) I see in Argos that I would very much love to have, but I guess your focus is the U.S., you could try out IKEA.

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