ToB is a much better bet than an XP cap remover. if you get the XP cap remover first, then ToB, you don't get any High Level Abilities (they are REALLY nice).

Also, the XP cap removers only let you go to lvl 40, (max the engine allows) and most classes go to lvl 38 or so (duals, etc.) with ToB, so it's a much better option to just go on a single-item shopping binge and buy Throne of Bhaal.
but, if you're really cheap and don't want the coolest items, coolest enemies, coolest abilities, and coolest settings, try
Baldurdash or
Gamebanshee, and that should work. if not, tough cookies. wait a few days.