What do you think of this build?

[bbqroast]

eVGA GeForce GTX 550Ti Graphics adapter - 1 GB - GDDR5 SDRAM
Intel Desktop Board DP67BG Extreme Series - motherboard - ATX - LGA1155 Socket - P67 - LGA1155 Socket - Retail
Crucial Technology BL2KIT51264BA1339 8GB Kit (4GBx2) DDR3-1333 Ball
Intel Intel Core i5-2400 BX80623I52400 Sandy Bridge 3.1GHz (3.4GHz Turbo Boost) LGA 1155 Quad-Core Desktop Processor BX80623I52400
Internal sata new sata rewriteable cd and 8x dvd +/- rw read/write cd dvd rom drive burner for most laptop notebooks (This will just be for installing the OS and maybe writing one or two disks a year).
PC Power and Cooling PPCMK2S750 750W PPC Silencer MKII
NZXT M59 - 001BK Black Computer Case
WD Caviar Blue 500 GB Internal hard drive - 600 MBps - 7200 rpm x2 (I just prefer having two physical drives).

I am considering Ubuntu 11 for the OS, most likely 64bit but I heard something about Ubuntu 64bit on Intel Itanium (Is that Ix chips?) chips, so will that be fine???

Also can you see any possible issues, future ones as well like the motherboard exploding if I add another HD??

 

[AdrianPerry]

Filling in this build advice template is going to be of great help here:
http://www.tomshardware.co.uk/forum/261222-13-build-advice