Joomla Gallery component

I require a Joomla component for an artists gallery site. The component needs to enable registered artists to login to their own gallery are and upload images (automatically resized for thumbnails and enlarged versions), add descriptions, price, their own profile information, etc. All amendments need to be authorised by the Administrator. The registration process for the artists requires a paypal interface to cover the cost of standard membership as well as the ability to add premium options to their membership (at extra cost). -------------- The public side of the site needs to be able to display artwork by both category (categories are: Painting, Sculpture and photography) and artist as well be fully searchable. The artwork needs to be able to be purchased online through the use of Paypal. The idea is similar to myartwork.com. Part of the purchase process must include registration to the site. -------------- The site administrator must be able to: Signup new artists - create a username and password for artist. The artist will then login and pay for his/her membership via Paypal to activate the account (the date of activation must be recorded). Manage artists, their gallery and profile (inc hide artist and artists work from gallery). Manage registered users (different to artists) - similar to 'User Manager' but require the capture of more information and also their purchase history (inc transaction details). Manage categories - add/modify/delete View the site's purchase history as a whole and via a date range --------- The public side of the site needs to utilise css styling. It is very important the artists area is easy to use to enable any computer literate person to upload images and modify their profile. It is also v. important that the public side of the site be user-friendly and inspire confidence in the online purchasing concept. --------- The winner of this needs to be provide a flexible and reliable service and be able to work to a deadline.