My employer changed the insurance provider for 2007 and the biggest issue I had in selecting the new provider was, that when I tried to get the SPC for the new plan in Oct-Nov, when the enrollment period was, I was told that SPCs will not be available before later on the following year. So how can you select the new plan, when you don't even know what it is going to cover...
Finally after calling my employer's benefit center and new insurance provider I was told that the plan should be same, only the administrator will be changed from BCBS to United Healthcare.
Anyway lot of extra stress temporarily when I was just approved for the waiting list and all insurance approvals were done as well...