well, do you expect to use any 802.11a networks? if not, dont bother.

Additionally you will have to install a 5Ghz antenna to be able to effectively use the "a" portion of the card.
I had a TM1400 in my i8200, but replaced it with a 1300, because the i8200 only has a 2.4Ghz antenna as well, and I had no real "need" for "a" compatibility.
The 1400 is significantly more expensive than the 1300, offers no advantages in the "b/g" frequencies, and unless you need to use "a" networks it will be a total waste of money.
IMHO …