run the test again
a 1U pizza box does not need 4 fibre ports, no way in hell. Maybe if your talking quad socket systems hooked to a massive storage array maybe, but when a single HBA can push 100k+ IOPS and several gigabits/second of throughput you better have a fast storage system on the other end, especially if your running 30 hosts.
On HP's most recent world record SPC-1 tests they used a total of 8 BL460c G6 servers to drive 450,000 IOPS against a $2 million storage system(after discount). This is with 2 HBAs per server(4 ports/each). HP believes this 3PAR storage system can support at least 50,000 VMs (if they were VMs like mine they could probably do at least 150,000 VMs given the IOPS/vm I see as typical).
Also using 1GbE is no good, it will drive the cost up a bit I'm sure but at least use 10GbE, if your going to build a new VM system nobody in their right mind should be using 8x1GbE connections.
In the grand scheme of things the connectivity is going to be a small part of the overall cost. I don't know why anyone would buy a $6500 server and slap a few extra NICs and FC HBAs into it for vSphere. Get a bigger box. typical pricing would probably start at $20k(with a good box running $40k+), with vSphere licensing being at least $8k/box on top of that.
If your going to be cheap your probably going to buy that $6500 box, use the on board NICs, onto some switches, and use iSCSI or NFS for storage.
Me, my latest vSphere enviornment is a bunch of DL385 G7s with 192GB ram/each, boot from SAN, small 3PAR storage array, 4x10GbE/server (2 jumbo/2 standard - I use 10gig for the simplicity), 2x4GbE FC.