In reply to skizxi:
I have Tech Friends, Heliums and Camalots. While I've not used the Heliums so much (mine are new, but I have used partners'), I always find myself reaching for the BDs. They sit better, the cam action (both trigger and release) is super smooth, and I like the thumb loop. I don't find myself wanting for an extendable sling because, as already said, most of my slings are long.
However, double axles aren't always cheap (though £120 is a steal in my opinion!), especially as in most cases you'll have to pony up for krabs as well. A friend started out recently with DMM 4cus and they are absolutely fine, especially if price is a primary concern. I have never used Dragons (ah, maybe once actually...), but I highly rate DMM kit in general, so I guess my suggestion would be to start with a 3pack of 4cus, see how you get on, and maybe supplement them with a complimentary 3pack of Dragons/Camalots somewhere down the line. I would echo going to a shop and having a play; you'll easily detect which style you like the 'feel' of.