8400GS and FSX?

Ok so my new computer is almost done built. I just need some advice on my video card.
Will an nVidia 8400GS run FSX "just" fine (say 20-25fps)? It is just that I don't want to spend a lot of money on a video card... at least for now
The specs are:
Core2Duo E7200 2.53Ghz
2GB DDR2-800 RAM (oh yes, should I get 2*1GB sticks or only 1*2GB stick?)
Seagate 250GB SATA HD + My 80GB Seagate SATA HD
Intel G31PR Motherboard
LG Multiwriter
--The video card above--
Thanks in advance!
Will an nVidia 8400GS run FSX "just" fine (say 20-25fps)? It is just that I don't want to spend a lot of money on a video card... at least for now

The specs are:
Core2Duo E7200 2.53Ghz
2GB DDR2-800 RAM (oh yes, should I get 2*1GB sticks or only 1*2GB stick?)
Seagate 250GB SATA HD + My 80GB Seagate SATA HD
Intel G31PR Motherboard
LG Multiwriter
--The video card above--
Thanks in advance!