Software or a new monitor for photo-editing?

I have a very limited budget. I'm using a computer I built myself a few years back and the pc specs are fine but I'm toying with two options and wondering what you think. Right now I'm using photoshop cs2 to edit photos but I'm really in need of something to help with organizing as I'm getting more serious about my photography. The monitor I am currently using is the Dell M782P CRT and I can afford to either get a decent sized LCD monitor or buy Adobe Lightroom 3 and the pantone huey pro so I can calibrate my crt. Which option would you say would be the most prudent and why?