HP/Compaq :: WXGA Vs WXGA+ For 14.1" Business Notebook (6930p)

I've decided to purchase an HP 6930p. I will mainly be using it for business - Word, Outlook, the Internet, Excel etc. I won't be playing many games on it (if any) or be doing any video editing. I have a 24" display, which I can use for any graphics work (Photoshop etc). I'll be using the laptop about 50% of the time away from the office - at libraries, coffee shops, or other offices/meeting rooms.

I'm trying to decide which resolution to get - the WXGA or WXGA+. I know a lot of people on these forums recommend the higher res screens; however, I imagine a lot may use their systems for games, video editing, CAD, web work etc. I'll be doing intensive office work. For a 14" business machine, what is the best resolution?

Also, if anyone happens to be a 6930p user, is there any difference in brightness between the two screens? That could be a factor.