I need to know if my powersupply is strong enough to run my rig

Indeed, it will support everything you listed just fine. If you plan to upgrade the video card anytime soon, it would require a more powerful PSU with PCI-E connectors.

Another revision of an old design, with no current review I wouldn't trust it.
http://www.hardwaresecrets.com/article/332

^5 +1 what delluser1 said.

The good news is the 4600 series cards are not power hogs like some of the other cards. The ATI Radeon™ HD 4600 series graphics cards consume less than 75 watts under full load. They don't even need an external PCI-e power supply connection. Replacing the Thermaltake power supply with a high quality unit won't be that expensive.

The Corsair CX400 would be an appropriate choice for your system. It is currently on sale at newegg.com for a final price of $39.99 after mail-in rebate and shipping is free:

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

the powersupply does have pcie connectors

I was just saying that you will need a more powerful power supply with PCI-E connectors in order to run let's say, a 5770. Your power Supply does have a PCI-E connector, but it certainly will not push a 5770. The PSU you have is ok for what you have, but it is still suspect none-the-less...