Well, if you want to jump all the way in, the obvious next choice would be
one of the "standard" pocket editions, the UBS4 or the NA27.
On the other hand, an interesting "intermediate" step you might consider is
the Fribergs' _Analytical GNT_ (Baker, 1981 --this is published in
conjuction with their _Analytical Concordance[s] of the GNT_). Under each
word is a small siglum showing a "grammatical analysis" of the word. E.g.:
N-GM-P [= Noun, Genitive, Masculine, Plural]
>>I just picked up my new glasses today - bifocals .... :(
Sigh... tell me about it...
email@example.com -- deep autumn my neighbor, what does she do
http://www.sover.net/~nichael/ -- Basho