Please help find proper UPS size & features. Please

[Pack'nHeat]

My old computer and cable modem was able to run off a 320VA UPS. The monitor added too much and would sound the alarm. I would like to run my pc, monitor, & cable modem. I was told by a friend to buy a 500VA. Looking at my pc stats below will a 500VA be enough? I only need a few minutes in backup power. The one that I have, that is too small, I like because it has backup on one side and four power surge only outlets on the other side. Most of the ones I look at are backup only. So, could you help me find one that can back up these three devices and possibly have four additional surge protecter outlets? I'm looking at APC but they have a million different kinds. I don't really need any of the auto softwere backup ones. I just don't understand the difference. CompUSA has a 500VA for only $49.99 (http://www.compusa.com/products/product_info.asp?product_code=288428). Good enough for my needs? Please help. Thank you.

ps: This is strange! At CompUSA (http://www.compusa.com/products/products.asp?category_id=82&srch_type=catg2) none of their APC back-ups can be found on the APC (http://www.apcc.com/products/category.cfm?paramcategory=UPS&prod_type=UPS&web_displayed=all) site. hmmm...

EPOX 8KHA+
Athlon XP 1900+ with Swiftech MCX462
Crucial 512Mb DDR (PC2100)
ENERMAX Whisper EG465P-VE(FC) 431W
LG Electronics CD-RW 16x10x40
CL 12x PC-DVD
WD 100GB 7200RPM
WD 60GB 7200RPM
IBM 45GB 70GXP 7200RPM
IBM 45GB 79GXP 7200RPM
250 ZIP
Digital Doc 5
19" Sony Trinitron
SIIG ULTRA ATA 100 PCI Controler Card
X-Gamer Audigy
WIN-TV PVR
Leadteck GF3 Ti 500
2 120mm & 3 80mm fans
WIN XP Pro

[RampageIII]

500VA should be plenty if you just want time to save and shutdown.

I have a BlackoutBuster and run 4 things plus the phone lines and still have 2 non backup outlets free.



Mixed reviews on SysOpt Review (http://www.sysopt.com/userreviews/ups/reviewhtml/PK_Blackout_Buster.html)


All I can say is I've had mine for at least 2 years and no problems. I don't use the software though. I know it waorks by the warning beep, but never a flicker otherwise.