sir Kit I have a question...do I really need a DI box to connect the guitar to the mixer then mixer out to computer or there must be some stuff in between those connections?
You need a DI that has instrument level inputs. Check with the various DIs, some are designed for line level instruments such as keyboards.
ok po ba yung fast track ? at anong software po mga kailangan? salamat
Fast track is a 2 channel usb audio interface from M-audio. If you want to record drums or a full band, you will need more than 2 channels, which equates to a more expensive interface. As for software, there are a lot of suitable multitracking software that you can use ranging from Sonar to Cubase to Propellerheads new Record. Check out the various manufacturer's sites, some offer fully functioning 30-day demos such as Cakewalk's Sonar and Presonus' new Studio One.
If I were to buy/assemble a pc now, what are the specs should I get?
for 15k and 25k budget.
.
That can be a tough one especially if you want to achieve a powerful machine. You can try AMD machines which are usually less expensive, but always design your pc according to the soundcard you will use. For ex., if your soundcard is pci, you will want a mobo that has at least 3 pci slots so that you can choose the slot which does not share and irq with an onboard device. Often, 2 pci slot mobos will have you sharing an irq with the sata controller, or worse, video. If your interface is usb or firewire, search the interface manufacturer's forums for users who have problems with certain mobos.