Old MoBo CPU question

I have an old Intel server board s5000vsa pulled the specs off cnet and read this.

Compatible Processors
Dual-Core Xeon 5000 series, Dual-Core Xeon 5100 series, Quad-Core Xeon 5300 series
Processor Socket LGA771 Socket
Max Bus Speed 1333 MHz
Max Processors Qty 2

My questions are: Those 3 series of CPU's are those my only options?
Am I better off with 1 powerful cpu or 2 smaller ones?
Would any Graphics card work that would fit into my slots or will it need to be more specific ?

I would like to do some gaming nothing extreme but this will be more of a work computer .

Any info is much appreciated.
Thanks!

1) Yes. You are limited to the processors that were designed for this board.
2) Depends. If you are doing tasks that require multi-threading. i.e. if you ran virtual machines, you'd prefer something with more cores. Keep in mind that two separate CPUs might be significantly louder because you need cooling for both.
3) You can use any graphics card that uses the PCI Express (PCIe) x16 slot standard.

It should work depending on what you use it for. I personally wouldn't shell out money to upgrade this, since it's all outdated hardware. Though, you should be able to save money, since GPU's and DDR3/4 ram is really inflated right now (due to cryptomining). Don't expect to max out the settings of modern games. For more info on your mobo, check out this link http://www.userbenchmark.com/System/...S5000VSA/11735