I am trying to re-design a LAN with 2950G-48's with a maximum of 300 nodes. Most of the workstations are Windows XP and they only run one app. The problem is the app is run from the server and is creating bottlenecks to my users. I have 6 of the 48 port 2950's and am looking at trying to get the most bandwidth to my servers as possible for backup etc. My question would be, is it worth it to go to an aggregate switch ie. 3750G-12s for this purpose or would a regular gigabit switch perform this job just as well.