Keep in mind, I haven't used epsxe for about 2 years, so I'm truly out of date, but....
First I suggest making Iso files of your disks and play them off your harddrive....using winr, that will make the FMV's play a lot smoother
I suggest using Null2's 1.3 Audio driver for FF9 and only for FF9, it sucks for any other game, but it makes the music sounds very, very good (not so much the sound effects) with FF9...I suggest the internal sound for any other games.
You do have to configure Null2's correctly or you'll get lag, and bad reverb type sound during FMV's.
I have all the options checked on the first menu
....and for config:
22050hz, 16bit
buffer length 20
block 10
enable tone cache, use reverb, enable vag stream and linear interpolation checked. (I really don't know if this is all necessary, for the check boxes and I don't know what they mean or do either)
It wouldn't be a bad investment, just getting a PS2. There are a lot of games worth playing on it.