I'm using the new bge driver on a Supermicro  5014C-M8:

http://www.supermicro.com/products/system/1U/5014/SYS-5014C-M8.cfm

which has:

dmesg |grep bge
bge0 at pci3 dev 0 function 0: Broadcom BCM5721 Gigabit Ethernet
bge0: interrupting at irq 18, event channel 7
bge0: ASIC BCM5751 A1 (0x4101), Ethernet address 00:30:48:8b:8a:e6
bge0: setting short Tx thresholds
brgphy0 at bge0 phy 1: BCM5750 1000BASE-T media interface, rev. 0
bge1 at pci4 dev 0 function 0: Broadcom BCM5721 Gigabit Ethernet
bge1: interrupting at irq 19, event channel 6
bge1: ASIC BCM5751 A1 (0x4101), Ethernet address 00:30:48:8b:8a:e7
bge1: setting short Tx thresholds
brgphy1 at bge1 phy 1: BCM5750 1000BASE-T media interface, rev. 0

I've encountered no problems.

Pavel Cahyna wrote:
> Hello,
> 
> there have been some fixes to bge(4) - see
> http://mail-index.netbsd.org/source-changes/2007/09/28/0008.html . We
> would like to have them in 4.0, but we want to make sure that there are
> no new problems introduced. If you have the hardware, please test a
> -current kernel with if_bge.c r. 1.139 and report the results.
> 
> Pavel Cahyna


-- 
John R. Shannon