I have to thank everyone who left comments here, and on the Sockapalooza pligg; I have finally decided on two sock patterns. I even know which yarns I'm going to use.
A number of people said that they really liked the Snowflake Lace socks, so they emerged a definite winner. For these, I think I will order some Cascade Fixation (cotton with some elastic content) from the Simply Socks Yarn Company. I like their website, and their selection, so I'd like to try ordering from them. I was thinking either a pale lilac, a light blue, sage green, or this muted plum. And, because I've been wanting to knit Eunny's Bayerische socks and because my sock pal deserves my best effort, I am going to take on the challenge of knitting them. I have a reason for deciding on Brown Sheep Company's Wildfoote sock yarn, but I think that telling would be too revealing. I recently bought some from a LYS, but it's completely the wrong colour (grey, white and pine green). Instead, I was considering Vinca Minor (deep purple), Blueblood Red (a nice, rich red), Peasant Blue or Little Lilac. I guess, if I knit the Snowflake Lace socks in lilac or light blue, I shouldn't knit Bayerische in those colours.
Slowly, but surely, I'm moving closer to actually starting to knit my socks!