I had the money well before I pulled the trigger, so I know how it feels. I've wanted a Sub since I was a kid and first saw one in person, yet it was hard to actually fork over the cash. Between having the money and actually doing it, I bought 2 houses, my Omega, and an engagement ring that would have been a damn nice Rolex. Oh well, I finally found one that was too good to pass up and my wife pushed me to do it before we had kids. So, sitting in the parking lot of a Fred Meyer in Anchorage, AK, I made the deal over the phone and sent in some money to hold it until I could get back to Houston.
Also, that's an awesome thing you're doing for your mom.