Way to integrate many webmails into one on macbook?

today i got a macbook! finally replacing my laptop that was stolen this winter. i have mail accounts with yahoo, gmail, zoho, hotmail, and aim. i use each differently according to its strengths (one for photos, one for links, etc). i’m obviously a big believer in the cloud. yet still…i wonder if there’s a lightweight, clean, useful app i can put on the mac that has access to all the mails? zoho is usually odd-one out. i have firefox but still must bookmark zoho separately.