I have deal 22" acers, I just mounted them on a dual screen stand so now both the screens line up perfectly.
Even though multi monitor stands can be a bit pricey they really improve the feel of the work area, as when it was just 2 screens standing on a desk they would always end up out of line, having them mounted in a screen stops me from acidently missaligning them, I have had multi monitor set ups since 2007 and since adding the stand yesterday this is the first time a dual screen set up has felt complete. I plan to adjust the stand to make the screens a bit higher but over all I am very happy with it.
I have just ordered UK Filco Majestouch-2, Tenkeyless, NKR, Click Action, Keyboard which should get here soon, probably going to replace the trackball with something more fancy later on.