New here, with question about phantom power rigs

["ourobouros2k2" ourobouros2k2]

My name is Andy, new here and trying to soak it all in. I have purchased an=
 m10 recorder, which I love, but it really has me wanting to experiment wit=
h lower noise mic's. I am looking at a matched pair of rode nt1a's, as I lo=
ve the sound on the files that I have heard. My question is what battery po=
wered phantom power box options are there out there. Ebay has precious litt=
le to offer in that area, so I was wondering what would be a good recommend=
ation to use.

Also, I am wondering, if anyone here has had humidity induced mic. failure =
on a setup as the one described above? Will wind screens help keep this at =
bay?

thanks
Andy