What type and size computer are you using?

In my opinion, true graphic designers use mac.. what's even better these days is that the new macs can run both windows os and mac os either one at a time or simultaneously. This way you never need to re purchase and mac versions of windows software that u may have. This is my set up...

I use the biggest monitor Mac offers

Model Name: Mac Pro
Model Identifier: MacPro4,1
Processor Name: Quad-Core Intel Xeon
Processor Speed: 2.93 GHz
Number Of Processors: 2
Total Number Of Cores: 8
L2 Cache (per core): 256 KB
L3 Cache (per processor): 8 MB
Memory: 16 GB
Processor Interconnect Speed: 6.4 GT/s

At work I use an Apple iMac 27" 2.8GHz Intel i7 QuadCore, 1TB HD, 8GB ram I'm a designer/illustrator. At home, freelance designer/illustrator and I use a 20" iMac, Intel Core 2 Duo, 2.16 GHz, 8GB ram. Both are wonderful machines. I send all graphics to customers via email, files to printers via ftp (if they're over 2mb). If you are traveling and will meet FTF with clients, then perhaps a laptop would good for showing files and graphics. For design work, either of my machines get the job done, the smaller imac is nearly 4 now and works just fine with all of my design and illy software. Always check compatibility for software and your particular system software and hardware BEFORE buying. Apple Snow Leopard OS 10.6.3 was unable to drive my Kyocera color laser printer. Apple and Kyocera took turns blaming each other, I ended up getting rid of the Kyocera and getting a Brother.

For personal/graphics/editing Embroidery and DTG- we are running..

HP

Intel Core 2 [email protected] 2.67 gHz
6.0 GB
64 Bit
Windows Vista

DTG Printer- Rip Only

same set up but with Windows 7

using Corel x4 and x5 and Adobe on both

We just lost our Sony Vaio 32 bit because it was being overworked so we had to replace with a desktop

I'm running 2 quad core desktop PC's w/ 8 megs of ram in each with 1T hard drives in each, each system has 2 24" monitors running Windows 7 64 bit.
I've had to upgrade alot of my software after the switch from 32 bit to 64 bit, (what a pain in the a$$). My laptop is an Alienware Area 51 (4 year old running windows 7, 32 bit.
I use them for my artwork (both at the shop and at home) and to drive my equipment. I didn't get a Mac because some of the software to drive my equipment and to do graphics isn't wrote for Macs.
I do Large Format Printing, Embroidery, Screen Printing, Signs & Banners, Video, Music Recording and anything else that someone brings me to do.
I started small 7 years ago with the only computer I could afford (not a new one then but, it ran flexisign and photoshop 5) and a 24" roland vinyl cutter and 1 deskjet printer.