I've finally aquired a proper switch for Exchange West.
A Cisco Catalyst 4006 with a bunch of FE ports and a couple of GBIC ports will be serving as Internet Exchange in Galway until the demand for something bigger or better arises. Yes, this beast is EoL, next year even EoS, but honestly, the service is going to be free on 100 mbit/s ports and will come with no SLA and no option to buy transit across the exchange.
I've also sourced a SuperVisor III engine for the beast, so that it's running IOS, has a 64 Gbps switching fabric and will forward 48-Mpps in hardware for both Layer 2 and Layer 3/4 traffic.
I reckon' it'll be a good start platform.