Both CQU and CDU do a summer semester. There are other uni's that do distance for ENs upgrading to RNs, like UNE and CSU, but they don't often get a mention here because they don't do the first year (for non-ENs) by distance. USQ have just started offering nursing by distance, so I'm not sure how they'd go as that faculty is new to it, but I know UNE and CSU are really good at distance ed student support as a whole, having done other stuff with them. CQU now offer the full three years of nursing fast-tracked/crammed into 2, so if you get a credit for a 1/3 anyway, perhaps they may allow you to do the EN to RN bit even faster than 2 years.
I did some of CQU's and CDU's nursing degrees (others who got further into the degrees might have had different experiences to me)... CQU has better video lectures where you can see the actual lecturer talk and they encourage internals to use desk microphones so as an external student you can hear both sides of questions (but you don't get to participate 'live'). A&P1 over summer last year at CDU had zero video lectures, not even repeats from the previous semester, just 'here are the powerpoint slides' and 'read the textbook' so I wasn't impressed. CDU video lectures (when they do have them) often involve listening to the audio of the lecturer talk whilst you only get to see the powerpoint slides flick over, but you can be 'present' in some classes and participate via microphones from home. So some pros, some cons.
CQU A&P was a bit easier than CDU. CQU do Intro then Advanced. CDU do go-to-woah in half of the body systems in one unit and go-to-woah in the other half in another unit (so you can take them in either order). I did not like CDU's method as it was hard learning the advanced stuff about (say) the kidneys before you have even done the basics of the circulation system. CQU used one 'one semester' A&P textbook for both units, CDU used one 'two semester' A&P textbook for both units, so CDU expects you to know more in the earlier subjects. But being an EN, you may not have to do any more A&P... except if you go to CSU, they still make you take the advanced class (BMS192, from memory) because they found too many ENs struggled with a background of only TAFE level A&P (or so I am led to believe).
Teachers at CDU and CQU - both had some good, some bad, but I found CQU ones 'got' distance ed a bit better. CQU teaches across multi campuses at once, so yeah, they have fancy camera technology too. I never got up to doing clinical placements with either uni (doing ENs now instead) so not sure how good either are on that front. Residential schools - CQU have more than CDU (CDU just have one week for each normal year), which is a problem when doing part-time because theirs is linked to units so you might have a 2 day one in one semester and a 3 day one in the next semester but if you were full-time, you'd be there the whole week, if that makes sense. CDU have some satellite places to do residentials (e.g. Melb) but they are hard to get into and not always offered, normally it is Alice Springs or Darwin. You have choice usually with CQU of Rocky, Noosa, Bundaberg, Mackay.
Umm, what more? Check what level of credit you get at each one. Now that the EN course is a Diploma, some uni's give less than 1 year off to Cert IV ENs (for example, CSU). If I go back to RNs after finishing my ENs, I'd probably choose CSU as they are more local for me so better chance of getting localish placements in NSW (CQU was kind of too Qld focused). Ooh, and check the hours of placement you'll still have to do, you may find any EN hours don't count, even if they offer a first year placement and you get 'first year' (8 units) off as credit.
Also, check if any transition programs are offered for free. CSU has one through their Studylink thing for EN to RN conversions, to brush up on academic skills specially for nurses, if you want. UOW (not that they do distance) force you do a catch-up conversion thing, so see if you do in fact just waltz into second year as an EN.
Hope that helps.