Hi All,
Advise please.
I have a 12" Meade Dob (FL: 1524mm) and I'm pretty stoked at what it offers. Unfortunately I'm getting greedy (surely that's not a bad thing?!

) and I want higher power mag. for some closer peeks of planets, and a cleaner picture (less coma etc).
I don't mid spending the money, however, I hate wasting it. That being said, if anyone can offer some advise on what eye pieces to buy for this scope, which I would (most) benefit from, I would be deeply grateful.
Also (after reading some mags and books on eyepieces) I'm leaning toward a Tele Vue Paracorr and the Nagler style.
I don't suffer from any eye issues

and fine movements on the scope is a breeze...is 4mm do-able?
My current eye pieces are
Meade QX Wide 26mm
Meade 5000 Plossl 14 & 9mm
Meade 5000 UWA 6.7mm
Thank you for any help