I passed today with a 332, I am a little bummed it wasn't higher. However from having zero real life experiance with SAN & FC and, the fact that we just purchased vSphere Advanced was I had a little less hands on, other than LABs and ESXi.
I think my biggest mistakes / challenges where hands down Maxiums, followed by FC/SAN where certainly the toughest. My other big mistake is as am sure most of you have IT jobs and IT is never "slow", and study time when I could be with my family is tough. I should have taken the test shortly after the 5 day class instead of 3 months. I have my CCNA so the networking portion was pretty straight forward, so that a relief.
The resources I used besides obsessing over the VMware documentation honestly this is all the documetation you need and, it is shockingly easy to read and easy to understand, it's not a a RFC doc or TechNet article 
My list in no specific order :
VCP4 Exam Cram ( Elias Khnaser )
Mastering VMware vSphere ( Scott Lowe )
VMware vSphere 4.1 HR & DRS Technical deepdive ( Duncan Epping ) I am about 3/4 done but this is amazing good read.
A huge help probally the best was Simon Long's Blog :
http://www.simonlong.co.uk/blog/
3 trials of vSphere for my Labs, Fusion and Workstation.
While people say the mock tests don't help and are a waist, I think is inaccurate it is the base of the testing structure. The theory does apply and, as far as maxims there is a lot of stuff I will never use again but, it is on the test. Books can be outdated and some of mine where. Just cross reference the new doc's and I had a frame of reference of why the and what changed. Oh and just an FYI I took the VMware mock test once before the test today and scored a 97.8% so do not get discouraged. Also I would say I have atleast 60 hours in straight study time, for me getting out of my home / office was the most productive. With the money invested by company this was a test I couldn't fail.
I just wanted to say thank you.
