SSD as Host Cache or Virtual Machine Swap File or both?

I recently acquired an 80GB FusionIO card for my ESXi 5.0.0u1 server. I've done some reading on how to properly configure SSD and I'm still unclear on how to proceed. It seems there are two configuration options that need to be considered, Host Cache Configuration and Virtual Machine Swapfile Location. I don't want to use the SSD as a datastore for VM's. Instead I'd like to use it to improve performance for all VM's.

1) Can and should I be using the SSD for both Host Cache and Swapfile?

2) If yes, do I need to allocate a portion of the SSD for Host Cache, say 40GB and leave the remaining space for Swapfile? Or do I allow Host Cache to use 100% of the SSD space then also enable swapfile for all VM's?

Thank you,

John