Sorry guy,
I am going to be controversial here,
I think that you should buy a 49G .
why ?
because it the finest calculator around here.
I have followed the classic path 67-41CV-41CX-48GX-49G
Initially I did not want to buy the 49G, I was thinking that it a shame for hp to issue a claculator with such an external look (keyboard,...) it was like a blasphem to it configured algebraic out ofthe box, an so on. Then,
I tried to understand whether Texas Instr. has finally won the 20years+ war. and let me tell you what I discovered.
Hp49G is the story of huge internal fight that happened inside HP. , between the dev guys who wanted to issue the next hero that would have smashed the competition and the marketing guys commanded by execs who do not understand the business (Hp is going to get out of the businsness very soon). So the dev guys have managed to put formidable features inside the box, but had to comply with "marketing decisions" that determined the shape of the calc and imposed the algebraic external apparence.
At the end , the dev guy did not even have the ressource to finish the development, they issued in catastroph the machine, even without a decent manual. They are functions in the manual that are wrongly described by people who do not understand what they are writting.
Ok but what a machine,
if you accept its actual physical apparence, if you change a few flags, to restore its initial and fundamental state,
it becomes again the hero that it should have been.
olivier