I've never built a PC or installed a motherboard, Is there anything i need to know about? Like what do i do with the USB connections?
With the Front Panel USB there should be a 7-pin connector on the board with the same pattern as the connector on the case (typically like shown at the bottom of the post) and the rest should come in the motherboard documentation/manual.
I didn't read that it had IDE so if your DVD drive (also referred to as an optical disk drive) is IDE, you'll run into some problems. There are converters available from IDE to SATA and vice versa, so if it doesn't, you'll still be able to use it. Thermal paste for the processor should be straight-forward, although most heatsinks come with it pre-applied as a convenience. If it doesn't, make sure to put an ample amount between the two.
Typically a Front Panel USB connector looks like this:
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