Longshank,
So, what did you decide?
I have it on good authority that SWA isn't a bad place to be. Fairly flexible online and instant scheduling changes (some restrictions on certain days of the month, varies). As an example, a close friend had 18 days off (14 in a row, with no holiday/vacation days used) and was credited about 105 hours of pay. 21 days off this month, which includes a week of holiday/vacation.
parabellum - there is no part-time, contracts at SWA. It's all full-time.