Suggestion for e-commerce site on the cheap? :D

I’m creating an e-commerce website that sells mainly one product and need some suggestions on what plugins to use.

I tend to prefer plugins that have great community support (preferably open source), is free and easy to use as opposed to the latest features.

My requirement are as follows:

– shopping cart
– skinnable
– payment processing with PayPal

Any suggestions for plugins or otherwise anything else?

I’m a former light Drupal user that is moving to WordPress due to ease of use. Help would be much appreciated! 😀