I know this is really late, I must have missed this topic for a while, but I'll add my two cents to this bit of it for now.
Joshuamonkey wrote:I didn't find much in the Old Testament about this, but I found an interesting scripture in the New Testament relating to people being able to accept the Gospel after their death, and I'd kind of like to argue about this

(I may need another Christian to argue with):
1 Peter 4:6:
"For for this cause was the gospel preached also to them that are dead, that they might be judged according to men in the flesh, but live according to God in the spirit."
Along with 1 Cor. 15:29 and 1 Peter 3:18-19.
1 Peter 4:6:
"For this cause
was the gospel preached also to them that
are dead...
The difference in verb tenses is important, as the correct reading of it implies the gospel was preached to them in the past, and not when they were dead, but when they were still alive.
1 Cor. 15:29 only refers to the practice of being baptized for the dead and gives no other explanation, endorsement, or otherwise, really. I don't know how this can relate at all to people accepting the gospel after their death with no explanation for the purpose of the practice.
1 Peter 3:18-19 only states Jesus' proclamation to the "imprisoned spirits", but says nothing about them accepting it.
Now there can be differences in translations that can have a factor in some of this. I use the NIV translation myself, which I noticed differs slightly (but only in wording) in the case of 1 Peter 4:6.