Those two amps are looking great but are quite expensive. I also looked into those M-Audio sound card too. Sadly my budget is limited. Just can't convince myself to spend $400-$500 on these yet. The active monitor+sound card fits my budget more. That setup should lasts for a while.
Sadly money's been tight for me lately, so I need a bit more time to decide if I can even afford such luxury. It all comes down to money...

Thanks for everyone's help.