Quality eSATA PCI card and cables?

I am currently running three Sonnet 500P eSATA enclosures on a Dell
server using a 4-port Addonics eSATA PCI-X card.

Everything works very well and has been very reliable. However,
recently I had to do some maintenance on some adjacent hardware, and
merely brushed against the eSATA cables. Two of the three Sonnets
went offline! Thanks to RAID, no data or access was lost, but it took
a long time for the RAID mirroring to rebuild, during which time a
drive failure could have meant loss of data.

Are there better, higher quality PCI-X eSATA cards out there that have
better eSATA connectors? The connectors on the Addonics, while they
work, do not result in any sort of satisfying "snap" sound when cables
are plugged into them.

Any shared ideas or experience is very welcome.