The Acid series has always been a good choice. Ive been using Acid since 2.0 back a few years and have been making experimental music ever since. The newest is 4.o, although it's fresh, see if you can find an old version of their expansion packs...good luck
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fruity loops is not a bad program..and it's actually not so hard to use..but i preffer reason before FL..nn-xt sampler is the best, i do everithing with it..when i make a beat, i usually use cooledit pro2 to finish it
the newest version of fruityloops is pretty advanced and good for beginners..
i would recommend getting into FL..
reason is also pretty good, but imho not as beginner-friendly (u don't want the software to frustrate you in the beginning, or you'll stop making music before you have even really started)
for mixing i would say vtt (virtual turntables) are ok.. well they were a few years ago, when i didn't have my turntables yet
Adobe Audition is a must for making pro-remix's with a program that any amatuer can use. Easy track adjusting, track effect automation, a gajillion effects which can be automated in scripts so u dunt have to apply effects again n again manually on individual clips, has one the best equalizers Ive ever seen both panaramic and graphical.. just Adobe Audition lol thats all I have 2 say:P