MattT,
I'm a spectacle wearer and ultra-wide fields don't really do a lot for me, I'd much rather have lots of eye-relief and a very sharp contrasty image. The LVW's give 65 degree fields of view, the LV and NLV series give 50-52 degree fields. In my scopes the LVW 5, 8 and especially 13 are my favourites; in your Newtonian the 17mm would be fine too. I have these plus the 22mm and an NLVW30mm (I would suggest you don't buy this).
http://www.opticsplanet.net/vixen-lv-w-eyepieces.html
http://www.optcorp.com/productList.a...=30-718-76-813
I also have a set of LV's (LV5, 7, 10, 15 and 25mm) for my smaller refractor, they are very comfortable to use for long periods, high transmission and excellent contrast, little or no colour. The NLV's are the same glass but with a fugly fat plastic shroud.
At the long end I much prefer the TMB Paragon 30 or the Vixen LV50 (but its a 2" monster) over the NLVW30 which isn't so sharp, these are all fine on my 102mm f/7 refractor by they won't suit an f/5 Newtonian.
I have tried a couple of ES eyepieces and didn't like them so much.