PC Upgrade Query

I have an HP dx2250 Microtower PC with 896 MB of AMD Athlon 64 Processor
memory.



It used to run pretty good (even WDSc seemed reasonable), but since
installing Norton Security Suite it frequently has "issues." I thought that
adding more memory might help. I wondered if memory could be added via a
USB device, rather than ripping the thing apart (I hate hardware). Can it?



Second, it currently has Acer monitor with an ATI Radeon Xpress 150 display
adapter. I have a Samsung monitor (both monitors are wide, flat panels)
sitting collecting dust. I have read here that adding a second monitor is a
productivity gain, such as when using things like WDSc. I suppose that I
have to put in a different display adapter (did I mention that I hate
hardware?). What kind/make/model do I need to buy? Or is it possible (dare
I hope?) to buy a plug that I can add to the external port that would give
me the benefit(s) of dual monitors? Alternatively, is there a USB device
that I could use to attach the second monitor?



Third, speaking of USBs, I only have two [2] USB ports on the front. I
thought I had seen a device that could plug into a USB slot that allowed
five [5] USB devices to be plugged in. Or was I smoking some a bad batch?



If it matters, I am running XP Pro at SP3.



Thanks.



Jerry C. Adams

IBM i Programmer/Analyst

I will not eat oysters. I want my food dead - not sick, not wounded - dead.
-Woody Allen