LCD monitor+tv tuner+speaker or Samsung T220/T200HD monitor?

Hi,

I am looking for a monitor to do a dual monitor setup pc. So far I have one Dell 1905FP monitor. I am planning to get a second monitor. I want to be able to do work and watch TV in my spare time. I don't have a TV and this is the only monitor I will place in a room. The only speakers I have is an Edifier MP220 which is connected to the laptop. I am planning to build a low end system as I am on a tight budget and I don't have lots of desk space either.

These are some of the software which I plan to work with but not limited to.

Programs:
Dreamweaver CS3
Photoshop
OneNote-this is one heavy program once you have lots of notebooks around.-dual setup
Acrobat Reader/editor-dual setup
Word-dual setup
SPSS/SigmaStats/Excel-dual setup
Endnote X-dual setup
Firefox-dual setup

Thanks