from what I Think I know...
Is a heat box totally nessecary or does it just speed up the curing process?: Speeds it Up... You don't have to use them, but most Bowyers Do.
Would a straight non R/D longbow be worth making at all? Basically just taking the lams and glass and gluing them all flat together without a form, so you have a straight stickbow. i was thinking a glass laminated pyramid bow would be neat.: Why Yes they are... Hill made His Bows like that and look what He did....
what is a good book/website on building laminated bows?: The Best Site..... hmmmmmmmmmmmm... HERE, just ask away...
On a different note, how far back from the base of the nock (where your string would lie) do you place your fletchings?: I use selfnocks and they are 1" infront of the nock grove's deep end..I like little more room from my gloved fingers.