Bukkit

Hey i may have some awesome Features:

1. Let players claim a land by a tool like a wooden axe and if they claim it they need to pay a price for it like 100 blocks 50 dollar?

2. Can you add that if you place a block next to a claimed block you cant? because its only now from above but can it be on all sides?

Thank you (its a awesome plugin i use this plugin on my server :)