As EXT64 said - disable PhysX or your score isn't "real" and it'll be difficult to even use the compare feature on FM's website. There's absolutely no way, short of a 980x, that a CPU score is 35,000 unless you have PhysX. I really wish FM would freaking remove that feature as it does nothing to reflect real-world anything.
The GTS250 is really just a 9800GTX+ rebadged so you're not going to get anything better than that range (or around an HD4850). An HD5750, on an identical system, will beat it all day, not to mention an HD4870 which can probably be found on eBay for $100 - that will trounce it.
I've got a spreadsheet of 124 PCs I've built and their 06 scores, along with several Vantage scores, but I don't have anything with greater than a 9800GT since that's when I stopped buying nV or even recommending them to anyone. I can make an educated guess based on the 9800GT scores and the 4850, but that's as close as I can come. Also, you didn't mention your CPU, memory or Hard Drive as Vantage can also be influenced by an SSD (slightly, but my CPU score went up over 1,000 by simply upgrading to an SSD, which I don't believe it should have).
I have an i7 920 OC'd to 3.66GHz, 12Gb memory, and a 5870 with a 160Gb Intel G2 SSD
3dMark06
23899, CPU=6665, 2.0=9370, 3.0=11293
Vantage
P18809
GPU:17738
CPU:22997
So, yeah, your CPU score is solid - solidly exaggerated. Well, then again, you didn't mention your CPU. If you have a 980X oc'd to around 4.2, then I might believe 35,000. ;-)