Metal shears are the way to go. unless you have access to a machine that can punch them out in a single swipe, which most of us don't. Anyone with an idea of where to get something like that reasonably priced would be appreciated btw. The problem with cutting springs by hand is that it's almost impossible to keep the spring (front spring) from twisting during the cutting motion. I always leave a bit of excess at the front of the spring and cut rear to front so that the twist will be worst at the narrow end, then cut it off. You'll also want a spring alignment tool, lotsa supply places sell them and one is probably as good as the next. Also get a tube vise centering tool. I got mine from Pulse but you can find the same thing cheap at lowe's or HD.You'll also want a table vise, cause you'll find out that you don't actually have enough hands and it'll make things a helluva lot easier.
I have a method that I swear by for cutting springs, but it would require a crazy amount of typing. And frankly I have no idea who you are. Feel free to email me and we'll talk. Luck to you.