I gotta tell ya, I too have been waiting 10 years plus for this game. I bought SH2 and 3 but never got into them. I guess because being a yank, I just couldn't sink Allied shipping. Although who couldn't like Curt Jergens in "The Enemy Below"!
I too have the original SH1 and the expansion disks! I also have the Commanders Edition. 2 copies!! LOL!! And I too have a 98 box just so that when the mood strikes me I can patrol the Japanese shipping lanes. I waited with baited breath (anchovies no less!) for SH4 when I first heard last year of it's development. 10 years plus in the waiting, and the day is finally here. I bought it right away. 2 copies even and sent one to my brother. Now I find myself hesitant to take the plunge, from reading all the negative posts on another forum. I did the tutorials, and immediately found that the manual was less than helpful. But I do have a fairly beefy system:
2GB+Athon processor
2GB RAM
GeForce 7800 GS Video Card (256 RAM)
I'm thinking the game will be fairly stable on my system. I played the tutorials with patch 1.1. Installed 1.2 and haven't even started up the game out of fear of disappointment. I have to admit reading some of the posts here, I'm starting to think about it. I'm not ready to try the mods just yet. I want to see how the game plays and wait for 1.3. It's my opinion the devs are going to check out the mods, see what was done and incorporate the best features. Let's hope for the best! Good hunting!!