No, I'm using a mini-ITX chasis so a standard ATX psu won't fit.
It turns out the DVD drive I ordered was too long and won't be used. It's a good thing the few light games I do play are on a Steam account!
Everything
seems alright so far (I'm using the pc now). Once I get my On Disk stuff installed I'm closing up the case without the CD drive. It's a good thing the front of the case has it's own drive 'door' to preserve the look of the case while nothing is there.
Edit: It has come to my attention that an SSD is really fast.