When you go for the EX1 or EX3 make sure to get a Tiffen T1 far red filter, since these camera's have a 'far red issue'. They record 'far red', which is invisible to the human eye, but it can mess up black fabrics in the image (black dress becoming brownisch, etc). 2 Years ago when the EX1 was still very new I rented one for a 1-minute (I had to use the composite connection to load the video, because the fileformat wasn't supported in Premiere Pro2) and the darker scene in the pub looked indeed browner than expected. Only recently I read about the far red problem; that might explain the colors in that scene.
Besides that and some possible improvements (slow startup, no SD) I thought it was a good camera (great lens, love the over and undercranking options), but at the time too expensive (SxS memory! With the arrival of SxS-1 and the SDHC-adapters it has become a lot cheaper) for me and a new camera wasn't necessary yet.
Having said that... I've been looking for a new camera for a while. I didn't consider the EX1 and EX3 a real candidate (no SD! EX3 only SEMI-shoulder). I was really considering a HVX201 (SD and HD, intraframe compression, 4:2:2 recording, overcranking to 50frames on 720p), but DVCPro HD isn't squarepixel HD. (Which isn't a real issue yet, but I expect a general shift to blu-ray next 2 years)
But now the EX1R has arrived I made up my mind... EX1R it is. (full HD squarepixel, HD SDI so 4:2:2 intraframe can be acquired with external devices, both SD and HD recording are possible and the startup is said to be a lot quicker).
Hopefully I will get the camera soon
Maybe you can also consider the HVX-170: SD and HD, DVCPro 50, DVCPRO HD, AVCHD Pro 100 (which is full 1920x1080, but I don't know what chip the camera has) and HD SDI output, but P2 is still expensive (even the E-series). A GB P2 is around the same price as 1 GB SxS, but you need 3 times more of it and there are no cheaper alternatives)
Good luck with choosing!