I understand your problem Jerry. This has been discussed at length before on BF, and there is no easy answer.
If you take the 3130 (128RC in the UK) as the standard to which others are measured by, there are a few lighter alternatives, but I'm not sure any are better.
The 700RC2 is like the 'baby brother' of the 701RC2 which I used to own. I personally didn't get on with it and sold it. I much prefer the big chunky knobs of the 128, and the fact that you can easily control the tension from tight to very loose, and lock it up with the same Knob.
I have very little direct experience of the 700RC2, but doubt that it's any better than the 701RC2. I don't like the fiddly little controls of either, but others swear by them. Neither are cheaper in the UK either, nor quite as smooth as the 128.
A couple of others you might try are:
Manfrotto 390RC: weights a little over 600g, just over half the price of a 128RC (£35). I own one, and it's fine for a lighter scope like a Nikon ED50, even with a big scope occasionally, but I wouldn't carry your big scope attached to this head as it has a (strong)plastic QR lever. Reasonably smooth, but not fluid like the 128.
Velbon FHD-51Q: quite new from Velbon. Very smooth (almost as smooth as the 128), in both pan/tilt modes. Pan mode has adjustable tension. weighs 610g. Has a nice long QR plate that slides back and forth to help balance a front/back heavy scope (good with a camera attached too). Downside is price (around £100, though I got mine on special offer for £80). I also have one of these, particularly good with a smaller scope up to around 60-65mm.
Also, I've heard good things about the small Gitzo (not sure of product number), but have no experience of it. Very expensive too!
Hope this is helpful, Steve.