Oh bump, i just realized what you are talking about. Well, i know nothing else different that beacons... Sorry.
Are you looking for a way to quickly make changes in an area, fill huge spaces, shift, expand, replace, etc...? If so, one word: WORLDEDIT. :)
So what happened? Will you use bukkit? :D
Most servers use plugins like WorldGuard for Safezones, WorldEdit for terrain editing, and some Anti-Cheat plugins like NoCheatPlus (NCP). Plus...
Talk to him about the advantages that a Bukkit server would have (perms, plugins, customization...) over a vanilla server. This would work...
If you install craftbukkit 1.6.2 into 1.5.2 plugins/save files, you will just end up losing your world with a huge crash report on [CONSOLE].
I think that, in these new types of pressure plates, you have to throw a specific number of items, on each of them.
Separate names with a comma.