I find quickload to be an excellent product, I have chrony'd dozens of loads that i have make with quickload they are all very close, tend to be ~50-100 fps slower than what the program predicts, I find this so consistent that I am convinced it is safety feature.
I find quicktarget to be an average ballistics program, I like the RSI software much better. Having said that, I have not seen the new version of quicktarget which came out this year and has several new features, it is called quicktarget unlimited and you need to either run Vista to use it, or call the guys at NECO and specify that you want Quicktarget unlimited for WinXP.
I also have QuickDesign, this is also an awsome tool, I have designed 2 wildcats with it, and when the details were sent to quickload, the theoretical loads were very close to what the cartridge actually produced.