BetterEnchanting

Are you sick of seeing the "Too Expensive!" message when combining enchants in an anvil? Then this plugin is for you!

BetterEnchanting updates the price calculations for anvil enchantment combination to enhance the vanilla enchanting experience. Rather than using the number of anvil uses the item has, the resulting item's enchantment levels is used instead, allowing enchants to slowly be added to equipment, rather than having to fiddle with combining enchanted books to make sure you don't run out of anvil uses for the item.

It also updates the cost of repairs and renames so that they can be done indefinitely as well.