Meditations is a great core book but might be a bit heavy for a starting point. I'd actually recommend starting with Seneca's letters and then move on to Epictetus's Discourses. These offer shorter lessons (letters in particular since it deals briefly with practical matters of living in a series of letters, and also draws from other schools extant at the time) and will prepare you for the meatier Meditations.
OK here we go. Sacred Texts is an excellent free resource for studying any faith and they have a pretry good collection of public domain Buddhism texts in English:
On that list, and keeping the theme of Stoicism in mind, I recommend the Gateless Gate, Shaku's book Zen For Americans and the translator Suzuki's follow up Mysticism, Christian amd Buddhist.
There's also a nice collection of Shunryu Suzuki's talks "Zen Mind, Beginner's Mind" which I think is a good primer. It's not academic, and is very easy to read.
Japanese schools of Buddhism seem to be the most translated after the Indian/Tibetan schools (Dalai Lama) and I find these most accessible to Western perspectives. There's an entire web site devoted to J buddhism and resources in English: http://www.japanese-buddhism.com/buddhist-book-store.html
Dharmanet is more oriented around the Dalai Lama though if the Southern Schools are of more interest. Technically, the Dalai Lama comes from a Northern Tradition, but I find a lot of what he says seems rooted in the things you see in SE Asia and India, which makes sense considering recent history. This is a different take on Buddhism, and the true Southern Schools don't mesh with Western philosophies as well, but the DL's approaches meld North and South into something closer: http://www.dharmanet.org
Not nearly as amusing as my two years of Discordianism. That was just weird.
Sacred Texts is an excellent free resource for studying any faith and they have a pretry good collection of public domain Buddhism texts in English:
http://www.japanese-buddhism.com/buddhist-book-store.html