...and spent weeks doing research. I was all set to purchase the Keene system when a regular on the treasure dive forum put his up for sale on ebay. I pm'd him and asked why and he said because it just didn't cut the mustard. It is way underpowered and will support only one diver. So...
I reconsidered and decided to adopt my hero (Royal's) philosophy: don't take chances and just get a good Brownie and dive in inclement weather at the beach sos you don't bother folks with the noise.
I found a 390, used less than 20 hours (the guy's afraid of the water and probably not certified) and picked it up for a song! It looks stellar and will arrive at my doorstep probably late next week. The guy paid $4,200 for it new and had it on ebay for buy it now $2,500. I made one bid 30 seconds before the close and although I was the high bidder at $2,025.00, it was not above the reserve. I said to myself, well, I'll just buy me a NEW 280 then. Bout two minutes later a message came on to me from ebay saying that the seller (a 100% feedbacker) was offering me a second chance...at my high bid of $2,025.00. Ka-ching!
This all happened at work today (my lunch hour, of course)

so all I had to do was go the Credit Union down the hall and pull out the bux. I will money order him tomorrow and my new toy will be on its way soon.
I have until it arrives to find a decent farmer john, new mask/snorkel and pony tank.
It just will open up an untapped resource. I hope it reminds me of metal detecting in the late '70's in San Diego. Silver was everywhere.
Thanks for posting.
aj