Oct 15th 2009 8:38PM All of the games are immediately able to be played from the get go once you sign up. This includes add on packs.
Oct 27th 2008 3:19PM One thing to consider is that these players who are applying are ebaying. With the expansion coming up I have seen alot of players selling their characters hoping to cash in with hopes that they can regear a toon in LK. Pre-patch my guild picked up a tank who claimed to have experience through M'uru, but then failed to understand how to take a portal for Kalegos.
To your point though, I recommend a strong trial period for members if your worried about the application process. It brings people in quicker, and also can streamline the "do they fit" process. See how they work within the guild, do they get along and fit. Make sure they know they are on a short leash and after a while either bring them in fully or remove them.