I finally got around to doing the hardware calibration, I've tried to attach the file here (first time attacher alert).
1. Unzip the attachment to Library/ColorSync/Profiles
2. Select the new profile '20080216' in System Preferences > Displays > Color
It is safe to do this, you won't overwrite anything and can easily go back to system default with a click of the button at any time. It's also easy to compare the effect while you have a photo onscreen. It's best to do this inside photoshop, which is much more color profile aware than say a web browser. We're not talking about making nice web pics here, but accurate rendition for repro.
Profile made with ColorEyes
Display Pro and xrite dtp 24 colorimeter. It's good software with a demo available, I'd recommend it if color accuracy is important to you. At $300+ including hardware it isn't cheap but has saved me a lot of time in not having to mess with reprints. (I'm not affiliated in any way, I'm just a customer). Profile made with screen at maximum brightness. I may try again at 12/16 brightness. Profiled at D65 white point and L* colorspace (Lab based but software proprietary). I have to try profiling under various light sources and environments and then choose appropriately.
Personally, I find the difference excellent. Much better contrast. The washed out yellows gone, and more vibrant blues and reds. It better matches my 23" ACD which matches my prints (I'm a photographer). Interestingly, for B&W the difference is even more pronounced. The default profile was squelching blacks and pushing whites, there is a much more gradual range now, with details coming back from my blacks and highlights.
note: each and every manufactured display is slightly different, and changes over time. The only real way to accurately profile your display is to do it yourself, and do it regularly.
I'd be interested in any feedback others have.