Diff gears to go with cam?

[robbyj]

Just throwing this idea out there. If i can pick up this job im after ill be earning enough money to justify a cam + tune.

However i dont have much of an idea of what im up for.
So..

I don't care for top speed, would rather have torque. And that lumpy idle sound (if they go hand in hand..)

I was thinking of a Crow "Hi Torque" cam purely because of the name.
But im sure someone can mention a similar/better cam for torque

So questions.

Will a 'high torque producing cam have a lumpy sound?'
A different gear ratio will help with torque? is it worth it if i get a cam+tune
Will i need associated cam gear like valve springs etc? if so, what.
Will diff gears alone produce better torque as a worthy upgrade
Whats the best ratio for what i'm after

And what are the associated costs,
id expect around $1500 for cam+tune
(thats without taking into consideration associated cam gear)
Have no idea about costs of diff gears

Sorry about the questions but i want to gain enough knowledge if this goes ahead.

Thanks.