Hpt730 2.5gb 4 or 2 port Ethernet NIC and 2.5gb switch

My ISP graciously gave me 2gb symmetrical speeds. I currently have a an intel 350 4 port NIC in my hpt730. Any suggestions on a 2.5Gb 2 port NIC? Also looking for a used 10 port 2.5gb unmanaged switch.