Simple Q&A D&D 3.5 (by RAW) XXI

[Curmudgeon]

A 544

The Eidetic Spellcaster ACF is in Dragon # 357 on page 89. You don't need a spellbook; instead you use special incense (in place of spellbook special ink) to imprint the spells into your memory. You give up a couple of class features in exchange. Since that's not OGC you'll need to check out the issue yourself for the details.

A 545 additional info

If the weapon is sheathed, a DC 50 Sleight of Hand check will let you filch a weapon if you're at least as large as that weapon. A 2-handed weapon like a greatsword is of the same size as its wielder, so you'd need to be at least as large as your opponent for this skill use.