For now i have a EQ3-2 mount with both axis driven and a 90mm refractor.
I'm
just a poor student so i don't have a lot of money and i'm wondering what
telescope would fit on my mount so i won't have to buy a new mount?

I have an EQ-3 mount, if the EQ-3-2 mount is similar, then I will probably
handle one of the 6 inch F5 Synta Newtonians. Based on the performance of my 5
inch F5 Synta Newtonian and the 8 and 10 inchers, the 6 inch should be quite
good.

I see the OTA on www.astromart.com quite often for around $150.

jon