Can I get on the Internet on a PDA via the 8300 with bluetooth?

Why not use the 8300 only, and forget about aother PDA

Can I use CITRIX on the Backberry? That is why I need to use the PDA. I need to use CITRIX and Remote DEsktop to my servers.

No, you can't do that.

If you need to use Citrix, you can do that directly from the BlackBerry with this software:
Idokorro Mobile Citrix Client

Hey there I downloaded this program also so I could use Citrix but I'm unsure of the Citrix Server Port. Anyone have any ideas?

Thanks

If I remember correctly, Citrix uses TCP 1494 by default.
The best way to find out what port your Citrix server uses is to ask your Citrix admin or your Network admin.