Thoughts....
Hi Bobby -
You likely have already made your purchase, but in case you haven't.....
For boots, i have both plastic and leather boots as do many here. I used to use pac-boots "back in the day", but they didn't work well with crampons (too big and/or strap-on crampons = cold fingers). They simply didn't climb well for me - the sole was too floppy. The newer iterations or cross-overs *may* provide a wide range of use, but there can be a steep price for compromise in the mountains.
My current (for the last 3 years) strategy for winter camping and climbing is to use my leather boots (LaSport Nepal Extremes) with vbl socks inside and (OR Brooks Range) overboots outside. This has kept my cold-prone feet dry and toasty to -30F (so far!).
With crampons used in this configuration, the new-matic type bindings work b-e-a-u-t-i-f-u-l-l-y (mine are BD Sabretooth Clips). For example, last winter i was on a very steep snow slope where i *should* have already had my cramps on
. The BD Clip's nylon-resin toe piece simply went over the boot toe then strapped on and i was climbing safely in less than 5 mins - wearing my gloves the whole time!
Plastics are lovely for winter camping and the warm liners in the AM are sooo nice! BUT, they are heavy - though the Degree's are not too bad.
As for vbl socks - there are several places (and price points!) to buy them - campmor being where i picked up my last pair. I used the breadbag version (as suggested by my Grandmother who was from New Brunswick) early on and eventually "graduated" to stonger materials - essentially coated nylons. The sil-nylon vbl socks from integral designs in Calgary, Canada look quite promising. BTW, g-tex "vbl" socks don't work so well - they do actually release moisture (as advertised), unfortunately right into your insulating sock.
Also, using temp ratings for boots is not a good idea as has been mentioned. There is more to having warm feet by ensuring proper hydration and staying active than advertised temperature ratings "attainable" through (questionably) generous insulation. Why do plastic boot manufacturers not put a temperature rating on their boots? This is because it is simply too subjective.
HTH,
fm