I have only a laptop now so the keyboard is the apple one, and honestly, I cannot go back now. I would buy an apple keyboard to plug it in a gamer PC if I had one. The soft but responsive touch is unreal when you get used to it. You only discover how good it is once you go back to another keyboard, it just feels like driving an old car after being used to your brand new one. I wish they released an apple keyboard with a PC keys setup for gaming.
I love the magic mouse, it's weird the first hours or days but then it's awesome. I hated the previous mouse though, the one with the little ball on top of it, I don't know how people could use this one, it was weird and not precise imo. With the new one, It's like using a mouse but thinking with your trackpad gestures all at once, you can swipe one finger, two finger, double tap, etc, just like your normal trackpad. The right/left clic recognition is flawless as well. I think it's better using another mouse for editing or precise things though because it's a little bit sensitive and it's easy to scroll when you don't want to. Or it's difficult to scroll left without scrolling a little bit up or down (can be annoying). I had one of those gaming mice (sound silly to write) with different dpi settings and stuff and it worked well until it died (the magic mouse seems more reliable though)
I don't use it anymore so much now because I exclusively use the MBP trackpad. Same, took me some weeks to get used to it instead of using the mouse, and now each time I try any competitor trackpad, it feels like I'm rubbing concrete, with unresponsive gestures. I have never tried the external trackpad they sell as well, but as silly as it would have sounded to me a year ago ("why the fuck would you use a trackpad instead of a mouse ?") I would consider it now if I had an iMac or a Mac Pro because when you're used to it, you can honestly do whatever you want with little effort, as long as it doesn't need extra precision (like gaming or editing). My MBP is the very first laptop for which I never feel the need to plug a mouse to, 24/7. Even for mixing a short project on Reaper or basic photo editing, I feel no pain doing it on the apple stock trackpad, it's precise, smooth, and responsive (would use the mouse for longer projects though). I think it's one of the best features of an apple MBP, and yet it's not considered by people who compare them with other brands. I would happily pay 100e to have it as an extra feature on a PC laptop if I wanted to buy one (if it was calibrated for windows because W7 doesn't feel as nice as OSX using it on my MBP). Same for its keyboard, although some competitors copied it (with rounded square soft plastic keys as opposed to big clicky PC keyboard keys) and made some decent ones.