howtothings.co.uk

Here's a good website to look for Apps on your Android device.

http://www.appbrain.com/

You can download them for there, (think you need an account) or just get them from the Marketplace on your phone.

Not used the site recently but what about:

http://www.mobiles24.com ?

Never used it, it looks ok and they have an Android section.

Swish

I believe double twist now has android Apps with the bar-codes now. But AppBrain is still much better because, they have their own app which allows management from your phone.

-Drumm