I prefer 60 size over 40, mostly because big planes are easier for me to see.
The LT-40 is the same size as most 60 size trainers so it is a good choice.
In 60 size there are several choices in addition to the ones you mentioned, and all are good:
http://www.hobbypeople.net/gallery/125814.asp Global Right Flyer 60H II
http://www3.omnimodels.com/cgi-bin/w...I=HCAA2125&P=0 Hobbico Hobbistar 60 MKIII
http://www3.omnimodels.com/cgi-bin/w...I=TOWA1130&P=0 Tower Hobbies Trainer .60 MkII

one more...
http://www.thundertiger4u.com/thunde...ck-p-7303.html Thunder Tiger Trainer 60
I split this one out because it's only available in this super combo pack with radio, and engine. And it includes fuel pump, glow driver, charger, starting stick, recoil fuel tubing, and fuel cap; in a cardboard field box. I think it's a good deal if you need everything, but not if you already have a lot of stuff.