I actually recommend that if you're going to try BG1 for the first time, to go ahead and use the mods/fixpacks that put it in the BG2 engine so you are more likely to actually enjoy the game and not get bogged down and disinterested.

Highly subjective. I would recommend the complete opposite.

Of course, it all depends what you're going for. Some people desire the feel of playing the game when it originally came out so they *know* what it would have been like, some people just like to experience the game in the best permutation it has to offer. I like the latter because the game is rather burdensome and tedious otherwise and that takes away from the gameplay experience, for me. Combat especially for BG1 is much better with the BG2 engine, I'd have never played through BG1 entirely if it weren't for the BG2 engine modification.

I actually would say that 99% of the time, I am a proponent of not doing something like this, but for BG1, I'm the other way.

I understand that, but your words gave an impression of absolutes, ie:
"so you are more likely to actually enjoy the game and not get bogged down and disinterest"
You were ostensibly implying that to not do so inevitably gives the above outcome. I'm pretty sure that's not what you meant, but that is how it reads.

Don't know about that, I've never played BG1 with the BG2 engine mod. I think BG1 has its charms (and in fact in some ways I like it better nowadays than BG2) but it's pretty lacking in dialogue and quests. It's mostly just about combat really, there are hardly any puzzles, even less meaningful dialogue choices than in BG2, your party members have little personality (though at least that means they aren't as annoying as BG2's party members) and most of the quests are boring fedex-style "Get me that" quests. BG1 obviously was targeted at a much less mature audience than BG2, let alone Planescape Torment, the engine mod won't change that.

I guess I should have said, since it is just my view from my recommendation (if I'm recommending it I do think it would be preferred/liked, at least as a possibility, not with any sort of absoluteness or certainty of it not being possible to be another way; of course, it all depends on you. And like I said, I almost always prefer to not do something like that, but with BG1, I feel different, so it's a pretty outstanding thing to note/suggest or whatever.) A better phrasing would have probably been "so you might possibly like it better doing it that way." but that I feel is almost implied because obviously it is just my point of view and I'm putting it out there to be considered.

Maybe try playing BG2 if you can get it on sale, skip part 1. BG2 isn't as well written as Torment, but it has it's moments. There are some investigation type quests that are pretty fun and a couple of the companion characters are well written.
I don't know how familiar you are with RPGs and the fantasy genre, so I can't really say what would or wouldn't bore you. You might find the Drow section of the game interesting if you're unfamiliar with RA Salvatore's books.
Overall I think BG2 is worth giving a shot.
You might also try checking out Pillars of Eternity when it's price drops, that's got some of the same writing staff as Torment if I remember right.

I was wondering about if I would like BG2 and it turns out there is a demo: www.fileplanet.com/164134/160000/fileinfo/Baldur's-Gate-II-Demo-[Full-Install] or http://games.softpedia.com/get/Games-Demo/Baldur-s-Gate-II-Shadows-of-Amn.shtml . Died in the first battle and decided to hold on purchase for the moment.

OP's question is like asking, "I really enjoy driving a car, so do you think I'll enjoy skydiving, too?"...;)

The two games are very different...but I like both a lot--both are considered classics & must-haves for any collection.

It's amazing where spammers will dump their crap.