Howdy all. I just got a memory app that tells me what is using how much memory and whats left, I was shocked that if I opened Reason and Explorer and some other little apps that I am close to the 512 limit of ram being all used up! So I know another 512 without a doubt. And while I am at it, I would like to get my father in law a little present of 256 megs that will make him a happy man. <snicker> and maybe he will let me marry his beautiful daughter,,,, SO I have a lot at stack here... all resting on RAM.. So whats the problem you may ask. Well, COST! I want both for 200 buck max! Now I remember that AlphaTech <let his name ring in the halls of APPLEDOM> said that mohawk memory was good, and I think that GEEK boutique sell that type. Now they have 512 for 149 and 125$ The more expensive is called BALL Grid, what is that? The other is stacked, I know that there is an issue with 1 gig sets, does stacked mean that it is ok to use in the second slot? DO I need the Ball Grid??? Then my possible father in law has a Ti 400 with 128. He will love me for this, but i must strike while the karma is good. SO does he need a stacked type also, they have 256 for 45$! BUT then when you look at Crucial its 512 for 235$ Why is it SO much more....?? Help! must hurry and buy before I am thrown out of the family!