OK, getting to a nice short list, with Dotter and Tinkingbell's help today (thanks gals!) :
Beryl on ChicKnits (designed by Bonne Marie Burns) - this is currently top of my list. Looks like the shape would suit me, I prefer V-necks, it's mostly knit in one piece, has a long-sleeve option, and it would be warm and not floppy. Check out knittingpark's Beryl, to see how it looks on a busty lass (like me). But would the alpaca be 'firm' enough for this design? It's a very soft fibre...
Midnight Special Circular Sweater (Ravelry link) - love this, not floppy, but with circular / seamless construction! Won't keep my tummy warm though... but if I don't knit this now, I want to knit it soon (same goes for the Lara Pinwheel Sweater). You can also see Midnight Special here, down the page.
Another Kirsten Hipsky design, the Market Street Tied Cardigan.
And a third... the Blossom Cardigan.
The Brennan is still in the list, too.
Have also looked at (and bookmarked) Lily, Sylph, Ivy, Cable Love, Hot Cocoa, and much more, but I'm feeling pretty good about the list of 4 above. Dotter has given her stamp of approval to Beryl, and has offered to help me unravel Mariah tonight. Eeeep! But I'm feeling better about it now, more able to cope with the Big Frog, and the prospect of a quick knit cardy which I can wear soon.
Can you tell I'm procrastinating??! Argh. Back to work...