If you are looking for something like the Kelty Ignite, you could consider the MEC Aquilina.
Though it's not filled with DriDown, it's similar and a lot cheaper, with the low value of the Cdn dollar these days (about $185 USD ? for the Aquilina).
http://www.mec.ca/product/5025-627/mec- ... 7c-womens/
The 'Small' size in that women's bag fits to 5'4"
I have the MEC 'Raven' - which is the predecessor to the Aquilina bag- and it is warm enough for 'winter' Gulf Islands camping, and I'm a 'cold sleeper', so I like a warm sleeping system. (I've been toasty in conditions where I woke up with (melting) snow on the tent.) It packs into an Outdoor Research 10L compression bag.
A good sleeping pad makes a big difference in comfort and warmth, so that's an expensive part of the equation as well.
BTW, I notice that MEC does still publish
loft data on the bags they sell, unlike REI. IMO, loft is the main good measure of a bag's warmth.
Finally- a personal bias without any evidence: I think that the 'heavier' lower fill number down bags probably perform better in damp conditions.....something I've never seen any test data for. The expensive 'cloud of air' bags (I own a GoLite lightweight bag as well as the Raven, also an older 600 fill winter bag) are just the thing for high and dry mountaineering or lightweight hiking, but I have my doubts about how they perform in a rainy coastal situation (or a snow cave).