I thought I might help other new Hams who are going to be using either CHIRP or the RT Systems programming software. (These prices are based on cables for my FT8900, other cables will vary in price) First let's compare price, because who wouldn't like to save a few dollars. CHIRP: Software-free Programming Cable-around $20 Total $20 RT Systems: Software-$32 Programming cable-$30 Total $62 The price difference will buy you an additional 25 feet of LMR400 Ultra, or 47 feet of RG213 The CHIRP and RT Systems software works similarly and will pull repeater data from various sources. The one really nice thing about CHIRP (and why I will only use it in the future) is that it will also pull and compile frequencies for NOAA Weather beacons, the 5 - 60 meter channels, 186 - Railroad channels, all FRS, GMRS, MURS frequencies, 60 Marine VHF channels, along with over 100 European frequently used channels. It also seems a little easier to use (at least for me.) The CHIRP software can be a bit glitchy at times and you need to be careful what programming cable you purchase and that you have the correct drivers installed for the cable but overall I'd choose CHIRP for easy programming.