The best solution is built the computer by yourself, there are many poweful reasons.

• It will cost you less.
• You can pick the components (CPU, motherboard, disks, video....) that you want and not what they imposse to you.
• You can always upgrade it at any moment you want, so your computer can be always actual without the need of purchasing a new one.
• You can install any OS that you want and not be forced to use Vista.
• You don't need to buy all at once, you can buy the minimal and later add more RAM, a better video card, another disk and so on.

Components are reliable, even Chinese are!! The only problem that exist is the child death as happened with DELL. If a component don't died in the first days it will live for years, so it probably became obsolette first. If failed in the first days, there's no problem, where you have purchased they will change it for a new one.
Is not difficult to assemble all the parts, you can do it in less than a hour, in the begining you can feel lost, but is easy and in the end you will learn how to do it and so, you will know how to change or upgrade parts.

Stupidity also evolves!