Yes I agree. That system simply won't stand a chance with FSX. FS9 can look VERY good if you put time into it and the right freeware/payware.
The comment above might look like wisdom but..... If your existing video card is an X800 consider an X1650pro as a short term upgrade whilst you save the necessary for a new PC.
My own PC is three years old Intel 915 based motherboard, 2 Gigs of RAM, ATI X1650 pro, 3.4Gz P4 XP SP2 + updates. The thing is that system is running FSX SP2 pretty well with moderate to high graphical detail at decent framerates. I have purged all adware/malware and run regular maintenance (just scheduled scans, regular driver upgrades, MS XP updates - manual never automatic).
In the UK the X1650 pro can be had for under 47 quid less than $90 US ..... You'd be able to get a good bit more out of FSX and save a pile of money toward what will be an awesome PC later in 2008.
