VAX 4000/60

I've been lurking here for about a month now. A friend of mine told me there were a lot of DECheads here, so I signed up. I've been puttering around with big iron for about a few years, but I don't have anything left (had two VAX 730's and several PDP-11's - an 11/34, 11/73 and what I think was either an 11/04 or an 11/03... I'm sorta regretting getting rid of any of them... I'd like to get back into hacking Unibuss stuff someday) Anyways, I recently got a VAXstation 4000/60 from e-bay, for what I considered to be a nice price. Works fine. Had VMS 5.5-2 on it, but I got the hobbyist license and VAX/VMS 7.2 CD from montagar (good deal!). It only has 24mb of RAM - 8mb built in, and four 4mb chips, leaving two slots open. Unfortunately, the best I can do on that setup would be 32mb RAM. I know the machine can do 104mb (96mb in chips, I guess that would be six 16mb chips), but I'm not sure of the type of memory used. It also has two RZ25's, which are a bit tight. What limitations do I have on drives that can be installed? I'm not using the frame buffer. My intention even before I received it was to run a serial console. But I think it might be fun to run a graphical display. Have no idea what type of frame buffer is installed, except that it has an odd sub-D connector with three mini-BNCs inside. What's the specs on the monitor that can be connected? Can I get an an adapter cable to connect it to my PC monitor?