well for your words needs any lcd monitor will do the job, and a good job. first you ahve to consider your budget,second the brand. depending on that you can choose the monitor that better match your needs (when i say brand i mean quality of the quipmen in terms of durability, not of quality image, since you want your monitor basically for worsd aplications)
get the brand you prefer, any lcd monitor will works fine.
the dvi conector is just for enhance the picture quality, the diference is not big. you can use one adaptor to conect any vga to dvi and vice versa
the most important specs are the maximun resolution,energy economy, these are the main specs .