Clean & Clear Daily Pore Cleanser - I love the mini microbeads - it really helps my blackheads.
As for lotions, I use Oil of Olay Sensitive in the winter, and Kiss My Face tinted moisturizer w/SPF in the summer.
I have very oily skin, and no matter what I do, I get some blackheads unless I regularly apply a light benzoyl peroxide like persagel to my nose (like once a week - my derm said that's really all benzoyl peroxide is good for - and if you use it, all your blackheads should be gone in the morning)