As a matter of interest, do you plan on picking up more than one satellite on your dish or do you plan on connecting more than one receiver to the one satellite?
For picking up two or more satellites with the same dish, you will need a twin LNB bracket or a dual head LNB. The most common dual-LNB bracket is a 6 degree bracket, which allows you to pick up two satellites that are 6 degrees apart, such as Astra 19.2E and Hotbird 13E. The other popular combination is Astra 28.2E and Ebird 33E, although this combination is used to pick up BBC Digital and satellite based broadband (Skystar2 supports running as a satellite broadband modem, but quite expensive unless you don't have any other forum of terrestrial broadband in your area). There are other brackets that allow a variation of 3 degrees up to 20 degrees that I have seen. I would recommend going no more than 6 degrees unless you plan on going for a larger dish since the signal gradually fades away from the main focal point.
If you plan on connecting two or more receivers to your dish, then you will need an LNB with two or more LNBF's. The common combinations are 2, 4 and 8. For example if you plan on having three satellite receivers including your Skystar2, then you will need to go for the 4-output LNB (unless you come across a 3-output version).
When you connect two or more LNBs to your satellite receiver (in your case the Skystar2), you will need to use a DiSEqC switch to allow the receiver to switch between the satellites. I would recommend going for a 4-way DiSEqC switch as this allows you to add satellites later on if you wish.
With a fixed 6 degree twin-head LNB (LNB with two heads with the feeds spaced 6 degrees apart), the LNB itself generally has a built in 2 way DiSEqC switch, so all you need is one cable from the dish to your PC. Most Twin-head LNBs have two LNB outs to allow the connection of a second satellite receiver.
When setting up a dish with either a 6-degree bracket or a dual-head LNB, you move your dish to pick up one satellite. Then the 2nd satellite should automatically fall on the 2nd LNB. If you are at the back of the dish, the LNB on the right will have a more Eastern angle to the LNB on the left, since the dish 'mirrors' the satellites. I made the mistake of not taking the mirroring into account when I first set up a dish with two LNBs. In this case, you simply swap satellites on the receiver (e.g. satellites the 'A' and 'B' DiSEqC ports are on). For a bracket where you can vary how far the LNBs are part, you position them a small distance from the dish arm (unless one LNB is fixed to the bracket), move the dish until one LNB comes in and move the other LNB along the bracket until the 2nd satellite comes in. Finally, in either case, you will need to adjust the dish height to compensate between the two LNBs, especially if you use a bracket that offers greater than 6 degress.
Finally, an LNB standards for Low Noise Block, just in case you are curious
Hopefully this clears some issues.