No intention of flaming here, but somebody who masters in a car really shouldn't tell us what paltform we should use.
I don't wanna get involved into a mac/pc war. I like both mac's and pc's. There's still this magic about mac's being better for digital audio recording.
Well, maybe they are, but who cares? The point is that you can make a very stable audio system on a PC based system.
My system is built around Steinberg Nuendo, Houston controller and Aardvark cards and I haven't had a single crash in the last two years.
This includes the recording of a full album.
It pretty much comes down on how you configure your pc and your software. Some excellent info can be found on this on the web.
I recorded 16 tracks simultaneous without any problems.
As far as Emagic Logic.. I wouldn't recommend it to people who start out with recording. It has such a weird interface and a hard to understand gain structure.
It's so different from "normal" XP applications that I'd definately not recommend it to starters. It does sound great though.
You gotta keep in mind though that having your games, internet, administration and audio recording on one PC with a soundblaster is gonna get you in trouble.
A better solution would be a standalone PC for audio recording (now don't start yelling at me, I use an ancient AMD 1333 with 512Mb pc that can be bought used really cheap), or a multi bootable harddisk.
One partition dedicated to recording and disabling everything you don't need, will get you in the ballpark.
A good soundcard is manditory. A soundblaster will NOT get you good results and a stable environment. I'd recommend the M-audio delta cards. They are cheap and work extremely well.