Are the hinges loose at all? Have you had to tighted the screws yet?

The horizontal swivel hinge has become loose on mine. I have not tightened it. I have had the unit for almost 1 year. The veritical hinge (lift the lid) is tight as the day I got it.

Also does the Acer support pressure sensertive? by that I mean can you alter the thickness of the line with however much pressure is applied?

Yes, pressure sensitivity is supported (app needs to support this as well for full functionality)

Whats the screen quality like (picture wise)? How is the quality if you use an external monitor?

I use either an external display at 1900x1440 or the internal LCD at 1024x768 for approx 11 hours per day. Great on both counts, no issues I can think of related to the display or display adapter.

Do you use the wireless option at all? If so what sort of signal quality do you get?

Yes, I have wireless on in both B and G modes all day. The unit is not any better at acquiring a weak/poor signal in areas that other laptops have problems in, so I'd call it on par with other systems.