You trying to build a lab? If so, keep in mind that right now there is a perception that one HAS to have a C5000 in order to get trained.. not so.. it's a myth. All you need is a SET based switch and a router that can do 100Mbps ( not the new 1700 series tho').. A 4500 with fastether, 2620, 2621 etc.. With the switch and the router, you can do the *router on a stick* routine for working out trunking and vlans. In order for the Cat5000 to be useful for any serious lab work, you really, really need the RSM and that my friend is bucks. The option ( that I did) is to rent time at one of the virtual labs with the Cat and RSM. That way you can work with the commands for modules and the like.
Just my opinion.. your milage WILL vary ;-)
MikeS "Diplomacy; the art of saying 'nice doggie' till you can find a rock" Wynn Catlin