I think I may have your mount solved:
http://www.proclipusa.com
6GB Microdrive is a good deal. Go for it. However I would get a 256-512mb SD to install apps to. The microdrive has to spin up to access things, so it takes longer and eats battery life. It's execellent for music and movies though.
Screen protectors-DO NOT BUY DELL's!! Get a Brando Ultra Clear for crystal clear protection or Boxwave's Anti-Glare for anti-glare issues. Boxwave is
http://www.boxwave.com and brando is
http://shop.brando.com.hk/ultraclearscreenprotector.php Note that each has a clear and antiglare, but I have found the boxwave clear to be a pain in the rear, and the boxwave anti glare gets better reviews than brando.
Case-Sena is great, if you do decide to carry your Axim everywhere and want a hard case, Innopocket's magnesium case gives excellent protection (better than aluminum IMHO) and looks better.
Mugen is an excellent battery and prolly worth the 10 bucks. Note that expanded capacity 2200mah will make it difficult to find mounts and cases that work, I prefer to carry a spare if I feel I may need it. Just keep wifi off and brightness down.
As for larger capacity, I havent heard of one, but they are making a 1800mah one that is extremely slim (still bigger than standard) and will fit in most cases and mounts. May wanna hold out for that.
As far as shipping, Innopocket and Brando are both based out of HK so it's international regardless, and shipping was quite speedy and should be no problem. Proclip uses DHL in the US, not sure about canada, but DHL is awesome if they do.