Okay, that band wouldn't fit to your "I-DONT-LIKE-SCREAMING-AND-GRUNTS" but try The Crown. Some heavy shit for people without a brain, 'cuz it was blown away
AND OF COURSE, DEATH!!! (fuck, Chuck screams again....man, do you know how hard that is with ur likes?)
But...a DM-Head isn't a DM-Head without knowing Death. At least to me
That band would fit to your "I-DONT-LIKE-EASY-LISTENING-SHIT".
Perhaps death metal is generally wrong for you...Then try some thrash...Give at least Kreator a chance. Mille screams too, but perhaps you'll like the rest
BUT you know what?
Go to the next libraries with a section for music and look for metal cds.
Read some underground metal mags (online, printed - doesn't matter), visit
www.librariusmetallicus.com, look around at this side, point randomly on a name and download some songs. With this method you'll find something.
Okay, costs some time, but I'm sure you have enough
Its christmas time, right? So I really think you have enough
Added: Hypocrisy (okay, Peter screams and growls like the rest, but yeah...what to do with somebody who wants heavy guitars and not the mentioned singing style...) got me into DM, perhaps the same functions with you
Try the Catch22 LP and then try other Hypo stuff. And then other bands
The Catch isn't pure DM, but I'm sure that you could like it. Got a friend of mine into death metal with this release
This above stuff is meant serious! Okay, some comments are a bit sarcastic, but I think you understand me
But as Sunlapse said before, give this style a chance.
BTW, why immature? Okay, some shit is it, but what to do with somebody who comes up, raises his middle finger (good, he has to defend himself 'cuz the attack of the others wasn't that nice - he could have ignored it, but he hasn't, so he has chosen the path of war), and screams for help...