Ha ha, no problem. Ask away as its a subject I do know quite a bit about (to make a change here). Its normally me asking for PC advice so nice to pay it back sort of thing.
Reason is universal (i.e the software disk will run on either Mac or Windows). I think you can buy a download only version which again runs on both. I actually will shortly be selling a code for both Reason 3.0 & Ableton Live 7 as I have gone from having two music production PC's to now just the one (& won't be looking for much for either), but I guess thats for another time if you do choose to go with either. I had planned on using eBay but would rather they went to a good home for less money sort of thing, but anyway, regards to the software & back on topic... The only advice I can give you is most people try and bite off more than they can chew & wonder why inside of 5 minutes they arn't making Timbaland style hit records. Also people think there is one synth or drum machine producers use that makes these hit records.
Music production is first and foremost about understanding the software you are using and the programming "principles" for all aspects of that software. Learn how to program initially a really basic synth that comes with your software, learn how to sample sounds from .wav & .mp3 files. Learn the absolute single most important thing (in my eyes) which is to layer sounds (especially drums & synths). Im probably going off on a tangent here but when you first start throwing tracks together you will realise your songs sound a little thin & lack the sparkle / punch of stuff you hear on the radio. This is because the pro's successfully layer a couple of kick drums for a much harder hitting kick, then layer sometimes a few claps together for a clap that really hits hard. The important thing is to only layer things for a reason as well. No point just throwing 3 really low bassy sounds together. Better to have say one low bassy kick, then a slightly higher pitched one and maybe a snare to add that extra crackle on top.
Like I say, off on a tangent here but I guess what I am trying to say is that its best to learn the basics first and then when your skills improve start spending hundreds on better synths, sounds, instruments, sample libraries etc.
Music production is much like PC's in that you can find yourself spending fortunes on the latest kit but unless you really know what you are doing it will be for little gain.
RE your software though I honestly believe Reason is the best starting block for anyone. It contains everything you need to get started and is reallly intuitive once you find your way. I also have a couple of tutorial CD's I don't mind sending you for Ableton or Reason if you did decide on either. Also have quite a lot of samples (i.e kicks, claps etc) that I have layered myself over the years that I will send if you do decide to get in to production. Should help you get started
