HTPC part spec check

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How will parts go together to make a 24/7 hd htpc?

AMD Athlon X2 4850e 2.5ghz
Gigabyte GA-MA78GPM-DS2H
1000GB WD Caviar Green
LG GGC-H20L Blu-Ray/HD-DVD SATA Drive
also possibly 256MB Sapphire HD3450 (Hybrid Crossfire with onboard gfx)

I have some spare Geil ull I can use and will need a sound card if onboard is not up to scratch. Case wise I am undecided but considering the Tsunami MJR2 to be abit different and it can be stood on end.

Also I take it a seasonic 300 watt psu will be more than enough?

Thanks

 

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Anyone got any thoughts on this spec?

I will be ditching my Q6600 for this setup as I don't use the performance anymore as only surfing the net and watching dvds and listening to music.

The Tsunami MJR2 is out of the question as it uses a slim optical drive.

 

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Thanks for the help, it's cleared a few things up.

Will drop the 3450 then and I have a X-fi gamer soundcard I can use.

Antec Fusion is a nice case, just something puts me off. Think it's the knob on the front.

Might look at some reviews for the Fusion as it would tick all boxes in a case I need.