I am looking to get some additional equipment, but wonder what I should really invest in for working on my BSCI test, as I am planning on going for my CCIP then my CCNP. As far as routers, I currently have a 2521, 2610 and 2611, but know that I will need to at least get some ISR's. The Cisco documentation recommends 6 2811's, but that seems pretty spendy. Any suggestions on what to go with? TIA.