After researching this extensively and comparing the McMurdo FastFind and the ACR ResQFix, I bought the ReqQFix and store it in the McMurdo canister that's meant for the FastFind. The McMurdo canister seemed to be the only readily available game in town for depths beyond 30-40ft. Prices on the canister vary greatly $180US - $280US, so be sure to shop around. The product is below.
Home > Safety Equipment > Man Overboard > PLB > ACR ResQFix PLB 406 EPIRB 
ACR ResQFix 406 GPS Personal Locator Beacon Category 1 PLB 
ACR Product No.: 2897
Model No.: PLB-300
aka: Resque / Rescue Fix / Resfix
Accidents happen every day on the water, whether your boat goes down, crew lost, man overboard, or a storm has left your boat incapacitated. On the water, a minor problem instantly can become a life threatening situation if you’re not prepared.
Put the power in the palm of your hand with ACR ResQFix 406 Personal Locator Beacon. Now you can turn that life threatening situation into a successful rescue story.
ACR ResQFix PLB 406 EPIRB (.pdf) Warning: If you want to buy and ACR and use the McMurdo canister, then do not buy the product listed below. Although it "looks" like it will fit in the canister based on the dimensions, it simply will not go in without damaging the PLB. ACR AquaFix Digital 406 GPS I/O PLB PLB-200 ACR Part# 2797.4NH (2797.4) The AquaFix Digital 406 GPS I/O PLB features an internal GPS, ACR’s exclusive FastACQ GPS technology and an external GPS optical interface, the AquaFix Digital 406 GPS I/O PLB gives the user unparalled versatility. This PLB can include GPS coordinates in the emergency satellite transmission via a handheld GPS, using the optical interface OR using the onboard, internal GPS built right into the PLB. ACR’s FastACQ technology relays accurate GPS information to the satellites faster than all other internal GPS PLBs.