Well, you can post an existing PC or make up custom specifications for one.

Here's my dream specifications

Intel i7 Processor
Nvidia/ATI Crossfire
16 GB's of RAM
Hologram Disc (really exists, but very expensive)/Blu-ray/HD DVD/DVD/CD Drive
2 TB SATA HDD
Liquid Cooling
Changeable colored lights on case
4 21" HD Screens

Operating Systems: Ubuntu Linux + Windows 7 Ultimate

Mine

Really fast Intel Processor
Whatever the second one is, the best one you can get.
16 Gigabits of RAM
Any disc drive
What every the most awesome one is
What ever is awesome
2 30" Apple HD displays

Operating System: Mac OS X and dual boots Windows 7 Ultimate.

~Linky

Dream computer? Well I'm doing one from my imagination!

It will be a laptop that, when wanted to, the keyboard can detach to be more like a normal computer. It will be Windows 7 but also there will be an option to change into a Mac. It will have unlimited memory. Automatically it will have Photoshop Elements 8, GIMP 2, Paint, and Corel Painter Essentials 4. Also the internet speed will be through the roof. And it comes with a free Intuos Tablet and a free Bamboo Pen, and Bamboo Craft!

And it will have a cool scanner thing, where there is a slot in the side where you slide in the image, then it scans it, you make the adjustments and it saves it. Then you get the image back. It also allows you to scan something, work on it, and then it comes back out with the modifications you've made!

There will also be a few folders jam packed with information, tutorials, etc. With a Movie Maker and Sound Recording and everything! And it comes with a free Pikachu mouse.



That computer would be just right for me, because it accommodates my needs.


AND it will have a cool thing where even when you talk very fast/slow/morphed, it will convert your speak into words clearly and perfectly.

Intel i7
8 GB's of RAM
HD-DVD/DVD/CD/BLUERAY/ETC
2x 2 TB Internal and 1 TB external (if laptop, internal - 500 GB, external - 2x 1 TB hard drive 
Multimonitor (3 Monitors)

Intel i7 Processor
Nvidia/ATI Crossfire
5000 GB's of
RAM
Hologram Disc /Blu-ray/HD
DVD/DVD/CD Drive/red ray
3000inch red ray
Liquid Cooling
Changeable
colored lights on case
5000" HD Screens

Operating
Systems: Ubuntu Linux + Windows 7 Ultimate+mac