bird & bears

I have 4 email accounts -- a school acct, 2 yahoo accts, and gmail. I would really, really, really like to not check 4 websites every day but I don't see how it's going to work. I tried setting up yahoo's fancy new homepage, which will check 1 yahoo acct and gmail, but gmail is the least used of my email addresses so it doesn't really help me. Yahoo refuses to be pop'ed to other email addresses. I could phase one out but both yahoo addys are kind of crucial - one I've had for about 6 years and use for basically all non-school correpondence and mailing lists, and the other is my midwifery stuff so I don't want to get rid of it when that's my contact for so many ppl. I have a mac and don't know much about the Mail application but I'm not super thrilled about using software like that, but if it's easy to set up and my life would be made simpler than I will do it. What I wish I could do is get gmail to collect all my email from every acct but I don't see that happening.

ADVICE PLS.