Bukkit

Better region defining.
When a player defines 2 points for the region, the plugin should mark it out in some kind of wire-frame box of Gold, iron, or whatever so the player can visibly see the region.

Also add 2 commands if you make this happen
/regios select (region), Selects a region and shows player the wire-frame box of blocks.
/regios finish (region), Turns off the visible wire-frame