This. As a general rule of thumb, if it's kakewalk-compatible, it's ANY method-compatible. (IE: Tonymac, etc.) Plus kakewalk makes it very easy to install. If you want to tinker, better to tinker with fun stuff like apps and settings, not pulling your hair out installing the OS in the first place.
Tonymac's site is another good place to check for compatible builds.
If you really want a reliable Hackintosh, please build it yourself. The main thing is the motherboard and graphics card. The best chance of success/long-term/support from the OSx86 community revolves around good motherboard and GPU choice. With a prebuilt system you're taking a chance that these crucial components will compatible and later supported. It's just too hit and miss to take a gamble, IMHO, unless you're 100% sure of the components used in a given model.
Other components- CPU, RAM, drives just need to be the right type for the board, otherwise you can choose whatever you want. (IE: you can shave off cost by using a compatible board + dirt cheap CPU rather than the one listed in the build, so you can easily get it down to your budget range.)
I use Final Cut Pro 7 every day on my sig system- which is ancient- it runs flawlessly and gets my work done. (I have no idea about Fisher Price X, or whatever that new impostor is, but I digress...) Photoshop CS5 and all other apps I use work perfectly. Generally, if OSX is installed correctly, then all apps work within it correctly. (Exceptions: some things like Apple's App store and Face Time may require a little tinkering with network settings.)
The main problem with your links is that they are older Core2 machines. I'd assume you'd rather have a more modern i3/i5/i7 Hack? Personally I wouldn't invest in older hardware when new hardware is much more cost-effective, and way better performance.
The OSx86 project wiki is an invaluable resource too- scroll down to Hardware Compatibility/version of OSX you'll be using, and click components. You can then browse through lists of components that are known to work, or have problems. I use this a lot for seeing what GPU is likely to work with little effort, and what will have me pulling my hair out- a very easy line to cross if you don't do a little research.
Built correctly, it doesn't have to be an ongoing science experiment. My main sig system -with many upgrades- has been running happily on every single version/update of OSX since about late 2008 with minimal fuss. The tinkering phase was at the start- now I just want a reliable machine, which it still is.
Anyway, with the right hardware, Hack-building is very rewarding, so have at it!
