I would go for:
Dive computer (do some research and choose an entry level computer - no need to spend a lot on this just yet as the technology changes quickly and your needs may change over time).
Mask (try before you buy)
Mares Avanti Quattro fins - they have been around for a while and have become classics. The latest version is the Avanti Qauttro Plus (basically some upgrades to the buckles and slight modification to the fin material).
The rest hold off on a bit and rent if you can... you'll get a better idea of what's out there and develop your personal preferences for the type of diving you do.
Dive computer (do some research and choose an entry level computer - no need to spend a lot on this just yet as the technology changes quickly and your needs may change over time).
Mask (try before you buy)
Mares Avanti Quattro fins - they have been around for a while and have become classics. The latest version is the Avanti Qauttro Plus (basically some upgrades to the buckles and slight modification to the fin material).
The rest hold off on a bit and rent if you can... you'll get a better idea of what's out there and develop your personal preferences for the type of diving you do.