Ok, first off, thanks so far to everyone. So much help already. This is exactly what I was hoping for when I tackled this project. So two maps following, one is with currents added, to make sure that I'm on the right boat. Pixie, I didn't copy your map so much as I tried to recreate it using the techniques you said. I glanced at your example map and the two looked similar, but hey, just wanted some more feedback. I also moved the island chain. I totally understand what you are saying, but I kinda like the islands (not that they have to stay, I'm just partial, for some reason). They may still not work, but hey, here's to trying, right? Also, if you or Veldehar have any ideas where I might find out more information about air currents, as I am completely uncertain about them, whereas I had at least a basic concept of how ocean currents work.
The second map is my own version of the pangea concept, firstly to see exactly how it goes together (because I may need to adjust some continent sizes/shapes) and also because I have a sneaking suspicion that it will be important in the next step, which is that I want to get a broad idea of the plate tectonics at work here, so I can know if I have a "ring of fire" situation, and other such important bits. So thank you Jalyha for the idea. If anyone knows a good way to get started on that, I don't even know what to look for, except the continent in the center of the "C" like formation is like the African Rift Valley (that was the intention anyway) just much further along its course.
And I can post my Inkscape SVG work files, if anyone wants them. I dunno if thats like a faux pas or anything around here, but if it would make things easier I can.
EDIT: Oh, and I also thought it would be a good idea to think out land bridges and that kind of stuff, even though that is more into the history "moving populations around" stage in some ways. I think that might fall into the suggestion of figuring out continental shelves, but again, I am a noob at that stuff. Just enough geological knowledge to hurt myself.