It seems Boo, that you missed what Skuzzy was warning about in his answer in another thread (referring to Nvidia GTX 720 as *20 = any of their series that ends in 20):
Be careful. It is not just about the RAM. An NVidia *20 with 1GB of video RAM will run badly just because the GPU is horribly inefficient/slow.
I found the GTX 730 for the same price (check Amazon). Even then, I would defer to Skuzzy's impression of that GPU.
750 Ti is going for 40 to 70 dollars more. Then still not knowing your PSU rating, may have to add another 75 dollars. Who knows, I can't say for sure but seems there was a better video card that required less PSU Watts, when taking into account savings on PSU, might be a better value. Note, the 730 had a customer confirmed running with 280 Watt PSU.
So hgtonyvi,
Since Boo was asking what were his options, dishing more money for a PSU might not be the answer. The technical talk, is important information that even his experts wouldn't have the answer for because of the specifics used by AH3. The best comparison that can be made for baseline system is here:
No need to panic. Most people will make bad purchasing decisions if they do. We still have a Beta period to go through and the current game will continue running in parallel during that as well. The Alpha is not done yet. It is still premature to talk about hardware requirements.
HiTech's current 7 year old computer runs the Alpha great. Intel E8400 CPU with GB of system RAM, Windows 7 64 bit, and an NVidia 660GTX video card (3 years old) with 2GB of video RAM.
What I am saying is, you may have a good core system and all that is needed is a video card upgrade. Certainly is up to the user as to whether or not they want to by a new computer.
That said, Windows XP 32 bit (32 bit anything actually) is going to be a tough operating system to get everything needed. A 64 bit operating system would be a good upgrade. Trying to cram everything into a single 4GB address space is getting really hard.