CCNP Home Lab

thenjduke

This is the following equipment that I have from my CCNA Studies
2 2620XM Routers max out on Dram/Flash
1 3640 Router Max out as well.
2 2950 24 Port Switches
1 2950 8 Port Switch
1 851W Router

I am looking to get a 3550 Switch not sure if should get one or two and what is the difference between SMI/EMI. I believe can get SMI and put EMI image on it correct?
Think I need another router or just use GNS. I have a pretty heafty machine.
AMD Phenom X4 with 16 Gigs of Ram.