Are you sure about the individual component warranties? That's a 4th gen i5 and even GTX 970 is quite old now. I think you can build a better rig by buying newer components yourself.
@bssunilreddy and
@Crapmypants can advice better.
i'll try to estimate the second-hand value of the individual components to help op decide between a new rig and this one. (fellow TE member's, please correct me where wrong)
Intel I5 4590 + Gigabyte H97 board ~12-18k
Nvidia gtx 970 ~15-18k
Kingston 4x4gb 1866mhz ram (16gb) ~4-5k
Corsair CX700 ~2-3k
1TB + 250gb Seagate hdd ~2-3k
Gamemax cabinet with 6 fans/dust filter ~1k
Creative speakers + Logitech keyboard + mouse ~1k
Samsung monitor ~2-4k (im guessing it's a standard VA/TN screen)
total ~41k-53k
Consider it only if you are not comfortable with assembling a pc, as it's age does seem to be a problem.
please take note, the large difference in estimate is not solely dependent on the condition of the parts but mainly because as soon as something gets replaced, it's value plummets like mad.
for e.g. the gtx 970 was a very formidable card and ruled the enthusiast segment for well over a year - until the 1060 gave similar performance at a lower TDP and was cheaper.
other's suggestion of getting a new rig has the advantage of being newer, faster and with full warranty.
what would ultimately matter is if the extra 15-30% in cost for a new system is worth it to you.
do take note: ryzen is bringing i7 performance to i3 prices and vega is less than 5 days away,
new or old, put your purchase off by a week to see if prices come down. amd is undercutting intel HARD.