Ken, Damian,
I haven't used Paramo or similar myself but I think I undrstand a bit how it works so perhaps I could offer my perception.
Aboutn the durability of Paramo, often is stressed that Paramo suffers less from the problems other technology like gore-tex or eVENT can have. Paramo has no membrain or coating and is insensitive for punctures or similar. Like in any raingarment, DWR is important to keep the outer from wetting out, but I guess this is of no more importance for Paramo than for gore-tex or eVENT. Actually, somewhere on the furtech website there's an article which claims that a paramo/Furtech style garment works even without a DWR. About Paramo not being waterproof without DWR, technically speaking Paramo isn't even waterproof because it doesn't pass a pressure test. But in practice it seems to work in really nasty weatherconditions and a lot of Brits are saying that nothing works better in such conditions than Paramo.
I don't know if you can compare a Paramo garment directly with a Pertex-microfleece combination. The garments weight that heavy because of the thick pumpliner which isn't just fleece but a directional fabric which actively seems to move moisture away from the body. The thicker the liner, the better it seems to work but also the heavier it is.
Ken, about those vents in the Furtech gear, I'm not sure but I guess these are actually meant to overcome the one point for which Paramo is often criticised: it's just too warm in most conditions. I guess the vents should improve the range in which it can be used.
About eVENT: Doug, I don't doubt eVENT works as well as most users seems to suggest. What I don't believe is that the fabric is that good that vents aren't necessary in any imaginable circumstance. You suggest to use the front zip or pockets to vent (which depends ofcourse on the design) but by suggesting that, you actually agree that the claim of GE/BHA is rubbish. Saying that you won't need vents anymore is ridiculous since that depends from person to person and I put it in the same range as a lot of the claims by Gore: pure marketing.
I do think that eVENT offers better breathability and climacomfort than Gore but at the same time I think that at some points important progress still has to be made, certainly about the DWR capabilities of a jacket. Some manufacturers seem to have taken that into account by using less hydrophilic face fabrics. There have been some suggestions that durability of eVENT could be a problem and although not always clear how serious those claims were, it's interesting to note that from 2008, BHA will switch to a new prodcution method for the eVENT membrain which should offer improved durability while possibly also having some build-in self-healing or self-repair capabilities.
Otoh, Gore has its new woven backer which seems to offer not only lighter weight and more durability at the same time (two things not often mentioned together) but also seems to offer slightly better breathability (although you won't hear me claim it will offer the same comfort as eVENT). It's interesting to note that the improved breathability has been attained without doing any change to the membrain. Changes to the gore-tex membrain could be closer than expected and I know Gore has made already testsamples of an air permeable, direct venting mebain which works in the same way as eVENT.
all these elements are enough reason for me to stay with my still working paclite jacket just untill most of these improvements are introduced onto the market.

