Go with the iMac
I actually just bought my first (at home) Mac ever today, getting the 24" iMac, loaded. I have always had access to Macs and whatever else I need at work, so I get to sample and choose from a lot of PCs and Macs.
My advice would be to think long and hard before getting the new "unibody" Apple laptops. I have had one at my disposal at work for a couple of months and am quite tired of it. I swapped it back in and returned to the previous generation MacBook Pro. The new Apple laptops look very nice and have great performance for their size, but all of the cords; power, ethernet, 2 USB, and display port are crammed together on the left side of the laptop and I found it really annoying.
Take a look:
Seems like I remember Computer OEMs experimenting with this layout about 10 years ago and buyers rebelled. The reasons are the same now:
1) Having all of those connections jammed together on one side does not work well, there isn't enough space when you are adding connections next to each other. You have to take care not to knock the power cable out when adding the network and vice versa. There are only 2 USB connections (which is fine) and they are right next to each other. Hence, there isn't enough room for my flash drive and anything else --I have several different UFD brands, all are too wide for the Mac setup with anything else attached via USB. Attaching my firewire hard drive works, but it is crammed too. I feel sorry for anyone that needs to connect the display port as well.
2) When you do connect a bunch of things all in that one space, the cabling mess is quite ugly and cable length and management becomes an issue. Forget it if you want to use a real mouse with it, Apple's own might mouse is too short if you are right handed. For a lefty, you can't do that because all the cables are in your way. Cables do look and work better when they are spread out with connections around the laptop, or better yet behind your screen.
I guess if one only needed power and only occasionally used peripherals, none of this would be an issue, but my guess is that most people who spring for a notebook in this range are power users and do lots of different things and need the connections.
I know that they put everything there on the one side so they could "unify" the body and not having the connectors in the back makes the notebook thinner, but geez, does it have to be this extreme? Honestly, I don't think I would have a problem with it at all if they just put one USB port on the right side of the thing. That would solve most of it and would make it a much better buy. It is a beautiful machine, it's just a shame the function isn't as good. It may be perfect for others, but doesn't work for me.
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HOME:
24" iMac, 3.06, 4 GB RAM, ATI 512 GPU; iPod Video
WORK: MacPro, 2 CPU, 8 GB, 4 HDD; HP Tablet 2730p, Vista; HP xw8600, Win 7 beta)