Help Selecting A New Brush

I'm in the market for a new brush. I currently have a Vufix 2236 in Super, a Simpsons #56 in Best, and a Jagger Best that's branded for CO Bigelow. The Simpson is a great brush though a bit small (both in overall height and knot size), the Vulfix is a great cream brush but a but too large for soaps as well as being a bit floppy, and the Jagger is a decent but unexciting backup brush.

I would ideally like a brush with more backbone, one that has a longer handle, decent knot size, and is a good soap brush in particular. A Silvertip might be the ticket, but I'm open to any suggestions. As to cost, I'd like to stay around $100 with a hard limit of $125.

I've been looking at a couple of brushes that I'd welcome some feedback on

Semogue Owners Club -Super Badger with Cherry Wood Handle
http://www.bullgooseshaving.net/seowclsbawic.html

Simpson PJ2 in Best Badger
http://www.bullgooseshaving.net/sipj2inbeba.html

Rooney/T&H Classic Lavender Silvertip
http://www.truefittandhill.com/detail_00352__19.html

Simpsons Colonel X2L in Best Badger
http://www.bullgooseshaving.net/sicox2linbeb.html

These are just a few that have caught my eye, I'm open to any other suggestions.

Thanks for your help!