Bonding?

Hi Folks, We've been collecting data through four 1-GbE Ethernet interfaces configured as independent connections on different subnets.  This has been working well enough for years. But now someone has suggested bonding those four interfaces into one virtual interface.  I've never had any experience with this sort of thing, it looks like there's "bonding" and a newer thing called "teaming".  We're already getting 950-Mb/channel so we'd be looking more for load-leveling and fall-over reliability. I wonder if any of you might have some suggestions or experience you might share? Regards, Lew