I have heard mixed stuff about OBX, but that might stem from the bickering on Honda-tech
Jenvey are widely regarded as some of the best on the market, if I was going down the ITB route it would be with them, they do two options, ITB's and a similar set that uses 2 twin TB's (hard to describe, but their website will explain more!), the ITB version is slightly more expensive, but when I spoke to them when I was considering getting some for my B16A2, they said unless you have extensive modifications, or it's a built race engine, the difference in performance would be almost unnoticeable.
Anyways, both are very reasonably priced, considering the price of the Toda kit anyway! Just a heads up, but Jenvey recommend using OMEX ecu's with their kits, as from their experience with Touring Cars and various applications, they believe it is the best suited system, not too pricey either, around £500-600 I think....but obviously you'd have to get it all tuned!
hope this helps
for anymore info, just email Jenvey, they are really helpful!