Monitor Calibration

[Photog82]

My X-Rite i1 Display Pro came in tonight; I usually edit in complete dark so I had it measure my screen in that setting. These were my settings pre-calibration:

Brightness: 65
Contrast: 47
Sharpness: 5
Temp: 6500K
GammaL 2.2
sRGB

My prints from Mpix were coming back pretty good (I usually don't have them color correct but sometimes I do) and sometimes they'd come back too dark. So I thought I'd try calibrating.

Post Calibration in Dark:
Brightness: 32

The screen is sooo dark now and the prints are a tad washed out. I'll have to order some prints; some of my photos look a bit dark. I am wondering if it's just due to me being used to such a bright screen?

What happens if I want a particular photo to be brighter and I bump the exposure up and then send it to a client who's screen is un-calibrated and it's totally over-exposed on their screen?

The colors look great though, my screen had a green tint to it and I had never noticed before.

When I save a JPG in PS do I export my custom profile?