Hi, I forgot.
If you send your pictures to a Photolab for printing, the only way to get "matching" prints is when both you and the photolab work in the same colorspace e.g Adobe RGB 1998. This is getting very technical, but that is the story with colour management, remember, people get paid for this!
I've done a lot of research since reading this thread. It appears that most labs print from the sRGB color space. My Canon Pixma Pro9000 (just received yesterday) offers to print in both sRGB and Adobe RGB. Since my monitor is a low end HP monitor, it would probably be best to stick to sRGB correct? I don't have any calibration devices and I know that my current monitor would not be able to render Adobe RGB fully.
When it comes to a new monitor a lot of high end monitors show near 100% coverage of Adobe RGB and sometimes more. For calibration, does that mean I should calibrate my monitor to Adobe RGB or sRGB?