250 Text messages
$5
Nick, word to the wise: You may wish to up your text-message limit.
Having a Droid
completely changed the way I thought about text messages; on my previous phone, they were a PITA to send, and it had really limited capacity to store them, but deleting them was an exercise in byzantine numeric menus, so I never sent any, and
hated receiving them.
The Droid's native SMS app threads your texts for you, so it's like having a conversation (it's more like IM than SMS, really), and with the hard keyboard (or the soft keyboard + swype) sending them is trivially easy. Unless you pay attention, it's easier than you might think to blow through that 250 in a month.
One way to avoid that is to use an IM client on the phone (Google Talk is native, but there are AIM and (presumably; I don't use it) YIM clients as well) instead of SMS; IM uses your dataplan, not SMS, so it's unlimited.
-BP