Anyways I went through the community and it seems that no one has posted the links to their CD on both Amazon and HMV. Since I was going through them while doing my research for the best prices (tee-hee, I'm pre-ordering from YesAsia), here are the links:
COLOR CD (Limited Edition)
COLOR CD (Regular Edition)
They're sold for the same price at both sites: 3000 yen (excl. shipping)
According to j_halo7 , HMV has set a limit for the LE this time, no more than 5 per customer and no multiple orders.
Happy pre-ordering! ^o^