Ok, here's a build...
Your availability may be different, but items of these TYPES should work well for you.
ASRock 880GXH/USB3 AM3 AMD 880G USB 3.0 HDMI ATX AMD Motherboard
Model #:880GXH/USB3
Item #:N82E16813157200
$79.99 $79.99
I've never had a problem with an ASRock board, although I haven't used this specific one. This one has USB 3.0, which may offer a little future-resistance. Asus is another good manufacturer; you'd want 880G or 890G.
AMD Athlon II X3 450 Rana 3.2GHz Socket AM3 95W Triple-Core Desktop Processor ADX450WFGMBOX
Model #:ADX450WFGMBOX
Item #:N82E16819103886
$79.99 $79.99
Three cores has been shown in benchmarks to be visibly faster than two, considering how many background tasks the O/S is probably running; virus scanning, etc.
Mushkin Enhanced Essentials 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1333 (PC3 10666) Dual Channel Kit Desktop Memory Model ...
Model #:996586
Item #:N82E16820146748
$37.99 $37.99
Meh. For the most part, RAM is RAM. I usually buy Mushkin, G.Skill, or A-Data. This happened to be the cheapest.
Antec EarthWatts Green EA-380D Green 380W Continuous power ATX12V v2.3 / EPS12V 80 PLUS BRONZE Certified Active PFC Power ...
Model #:EA-380D Green
Item #:N82E16817371033
$59.99 -$20.00 Instant $39.99
Quiet, efficient, stable; there's nothing not to like about this PSU. If not available, make sure the PSU you choose has full range active PFC (no little voltage switch) and 80+ certification (this one is 80+ bronze). Antec, Seasonic, Corsair, and Enermax are among the better brands.
LG DVD Burner - Bulk Black SATA Model GH24LS50 LightScribe Support - OEM
Model #:GH24LS50
Item #:N82E16827136178
$17.99 $17.99
One optical drive is much like another. I haven't had a problem with any brand I've used (including LG). This one has Lightscribe.
Corsair Force CSSD-F120GB2-BRKT 2.5" 120GB SATA II MLC Internal Solid State Drive (SSD)
Model #:CSSD-F120GB2-BRKT
Item #:N82E16820233125
$284.99 -$90.00 Instant $194.99
This one was available for a great price from Newegg, which may not be relevant to you. Look for a Sandforce controller, or perhaps Intel.
SAMSUNG Spinpoint F3 HD502HJ 500GB 7200 RPM SATA 3.0Gb/s 3.5" Internal Hard Drive -Bare Drive
Model #:HD502HJ
Item #:N82E16822152181
$49.99 $49.99
This drive is fast, and frequently recommended. I think I only have one or two of them; I often also use Seagate (7200.12 only, not earlier).
Microsoft Windows 7 Home Premium 64-bit 1-Pack for System Builders - OEM
Model #:GFC-00599
Item #:N82E16832116754
$99.99 $99.99
If you don't have Windows 7, you'll need it to maintain the best performance from a SSD; WinXP does not support TRIM. If your computer will need to join a domain, you'll need to get the Professional version, which adds $40 to the cost.
Rosewill R218-P-BK Black SECC Steel ATX Mid Tower Computer Case
Model #:R218-P-BK
Item #:N82E16811147073
$29.99 $29.99
I gave up on Coolermaster cases due to minor but consistent quality issues. None of the Rosewill cases I bought ever had any of those problems; this is one of the ones I've used.
Subtotal: $630.91
A little under budget, but doesn't include shipping, and of course your prices will be different if only because Newegg doesn't ship to the Philippines.