Well, my advice is to shoot in Adobe RGB. It has a far wider colour gamut. That said, no monitor other than very expensive Eizo's can handle the wider colour gamuts anyways. If you have money to burn, then go for it:
http://www.eizo.com/global/
An eye one calibrator tool will do nicely as well ;-)
You can always convert from Adobe RGB to sRGB as the final step when going from TIF to JPEG (it's what I do). Going with sRGB is throwing away colours - much like shooting in 8 bit instead of 16 bit.
Dave