Most of my electronics are sony though.. sony MD player, sony digital camera.. sony mouse (optical, for reading memory cards from my camera). I think sony's other electronics are good, but their computers are way too expensive.
Best company so far -
www.ibuypower.com, although I hate some of their cases =\.
I wouldn't buy alienware because it's too expensive...although they are hella nice :D .
edit :
www.superflyxtreme.com is pretty nice also