Bradley,
It sounds like you are a responsible kind of guy. there have been some very good posts here about whether you should or should not go for the freeze procedure.....
I can tell you my experience based on having had the vasectomy....( although I did not have the need to freeze any sperm)
1) the urologist did a physcological profile ( and a physical exam) to see if I was a candidate for the "procedure"
2) I was 42 years old and had 3 children and a stable marriage
3) I signed a form, acknowledging items #1, #2, & stating I was aware that the procedure was irreversable ( so they say, anyway). The procedure itself takes all of 10 minutes and is totally painless, in my case, with no down time.
It was a decision that my wife and I made together, and it seemed like a responsible way to practice birth control.
Two things to remember,----my wife was part of this decision----and we already had established our family ( children).
Give yourself some time prior to taking such a drastic step.. Please remember that these days, pregnancy is not the issue---AIDS is far more overwhelming--and the vasectomy will not help you there.
best of luck,
regards,
Frank