Adam,
I would say get 512MB DDR and a motherboard to support it. You should be able to get a decent MB (gigabyte is decent) and the ram for about 160.00 CAD. If that was my price range, I would do that. A G of SDRAM is not going to make anything better for you imo. And with that thought of the future Vid card, you might want a MB that is running closer to the speed of the ram in the vid card.
So as for you options....
Probably the HD would be your best bet. I know you and buying more sd ram will only end up being a waste of cash - you upgrade like moi !!
My 2 pennies bud.
