I've never used a 3rd party vendor for this. I've used ServerBeach, Rackspace, etc. But it was always with my hardware sitting on their network. Regardless,

I've never used a 3rd party vendor for this. I've used ServerBeach, Rackspace, etc. But it was always with my hardware sitting on their network. Regardless, be very careful when choosing your 3rd party vendor because of PII laws. Some 3rd party hosts won't allow you to store PII on their hardware. You can use their network (i.e. colo), but they won't manage the hardware for you because they'd then have theoretical access to that data.