If you still have CS2 then try reinstalling it (CS2 & CS3 will happily sit alongside one another). Adobe Gamma and Adobe Gamma Loader will then be installed as per my post above. It's what I have done.
Try this link http://www.normankoren.com/makingfineprints1A.html
which gives very useful info on why and how to calibrate a monitor. I have used Adobe Gamma to calibrate this LCD monitor plus my previous monitors and on each occasion, after some fine tuning, I get the correct gamma levels for Windows according to Norman's chart. However, the important test is that my photos print exactly as they appear on the monitor. Photography is a visual experience and I, personally, see no reason to spend on hardware to achieve the same result I get with AG.
You are correct in that you can embed the profile in the image when you export from the RAW converter. PS will pick this up and, if your working space is set to the same, import the file without comment and interpret that file to give the correct colour rendering. However, if you try to import a file with a different profile you will be offered options to convert, temporarily assign or use existing profile (providing you have set those options) and PS will then use your choice to give the appropriate rendering. If using a wider gamut than sRGB it is logical to set the working space in PS to that gamut. Converting 'down' to sRGB would lose some of the information.
My next step, after monitor calibration and setting the working space, was to set up the soft proofing (Custom) in PS to use the printer profile for the printer and paper I planned to use so that what I saw on the monitor is what the printer should produce.
This link may explain better than I can and the article contains further links re monitor profiling etc. Reading through all of these should give you a better idea of the profiling route you need to follow. http://www.earthboundlight.com …nagement-changes-cs2.html
I also use Qimage for printing and this takes the monitor profile, the profile embedded in the image plus the printer profile and then manages all of these to produce accurate prints. You can also soft-proof within Qimage.
As Adobe RGB has a wider gamut than sRGB it is possible to convert 'down' but not recommended to convert 'up'. You can't add gamut if it isn't already there. Because browsers, in the main, aren't colour managed any photos for the web should be converted to sRGB so that they will be interpreted and viewed correctly by the majority of browsers.
I have always calibrated my monitors (using AG) but sometimes had problems with colour casts on prints using some papers until I read and understood the full requirement for a colour-managed workflow. Now I have such a workflow I can alter settings via the different printer profile options to ensure no more colour casts etc. as I use different papers. Printer and paper profiles are available on the web although recent printers tend to provide these with the installation CD.
If you use online printing services then you would need to check what embedded profile such a service requires. i.e. will Adobe RGB print correctly or do they need all files in sRGB.
It can take a while but once you have your head around the issue it all makes sense and makes for satisfying printing. I guess the 'experts' on this forum will be able to use more technical terms than I have above and it would be wise to read their comments. This forum is where I learned to properly understand the whole colour management issue and modify my setup to get good results.