Sensational Socks has instructions for every sock in three formats: 4 DPN, 5 DPN, and 2 circs. Toe up or cuff down, your choice.
I did my first socks toe up on two circs, both socks at the same time (except for the afterthought heels, which I did one at a time). I found it pretty easy.
Doing my second pair toe up on 5 DPNs with a short-row heel. I found that two circs was fine for DK weight and size 3 needles, but with fingering and size 1's I had laddering problems. The DPNs just worked out better in this case.
Thanks for the link to Addi double points! Also, thanks for the link to the online class of the socks on 2 circular needles! I appreciate everyone's help!