my new 04 8... few questions about it.

I just got my dream car that ive been wanting for a few years now.. It's a 04 with only 35k 6 speed.... Other than burning some oil is there any other maintance that i should check/watch regularly?

Few more questions
When changing the oil whats the best out there for my car?

Also I've noticed that my oil-p is past the middle of the gauge by a few ticks towards the high side... Is that normal for a 8? If not what can make it come back to normal?(middle)

Another thing i was wanting to do maybe a few up grades to it.... And i've decided that its going to be a flywheel and clutch. Is there a company or brand thats the best for an 8?

Thanks guys...