DO i buy another pair?

[M!!cook]

i have one pair of Corsair 1GB DDR XMS3200XL XPERT TwinX (2x512MB) CAS2 (MY-076-CS)
http://www.overclockers.co.uk/acatalog/Corsair_XL.html
top one.

I want to add another gig really but do i buy another pair of this or ditch it and go with a 2gb pair?

I love this ram i love the 2-2-2-5 timing and i love the LCD screen!

 

[M!!cook]

i want to keep the screens unless its a lot of diff in performance.

 

[M!!cook]

does anyone know if i can get a 2 gig kit with the screens? if not what about in 2t? is it worth it?