Gigabit Ethernet

Hi, i am looking for gigabit ethernet controllers to be a used in a high load networking application. I found something from intel (Intel(r) PRO/1000 PT Server Adapter) Any other suggestions on gigabit ethernet adaptors or chips? Is there a real improvement against cheap controllers like them from

NXP ISP1362 USB Controller

Is there any support for the NXP (formerly Philips) ISP1362 or similar USB controller in OpenBsd? Did not found anything so long even in NetSDB and FreeBSD. Thanks in advance David