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I don't own a reverb so I can't help you on that, but for the overdrive I think I may give you some advice.
I play on a old marshall valve amp and so my "clean" sound is not clean at all, it is a bit cruchy. If it's the same for you (your clean sound is a bit crunchy) you should look for the Ibanez ts9 or boss SD1 (I use both, depending on the situation).
If you want to put an overdrive over a crystal-clean sound, I think something like the Radial Tonebone Hot British should be ok, I have it (but I broke it :( ) and it sounds killer. But I don't remember if it has a "boost" option.