With the constant flow of new PC hardware and updates software programs, it can be difficult to keep up with all the change, not to mention expensive. So when is it really time to put money into upgrades?

“It depends on your uses,” says Ramon Ray, Editor of technology resource provider Smallbiztechnology.com and self-described “technology evangelist.” “In general, you want to look at refreshing hardware about every three to five years to take advantage of capacity and processing improvements. But that’s not a must. In fact, if your computer is running well and you have no issues with storage or speed, hold onto it as long as you want. And certain peripherals, like printers, last several years before wearing out.”

On the software side, do what makes sense for your business. If you’re doing mostly word processing or spreadsheet work, you don’t necessarily need the latest and greatest versions. However, make sure you take advantage of any updates offered by the software manufacturer. “When a new release comes out, take the time to look at the new features and determine whether you need or want them,” advises Ray. “It might make sense to bundle your technology upgrades, getting new software when you update your hardware.”

The one area in which you definitely want to keep up with the latest versions, patches and updates is with your anti-virus and firewall software. Generally, these packages are self-updating, so it’s easy to stay up-to-date.

One note on Microsoft’s new Vista operating system, scheduled to debut in January 2007: If you’re already on the XP platform, Ray recommends staying with if it’s working for you. “Don’t immediately shift to Vista,” he says. “Let them get the bugs worked out first by the early adopters. Vista will, ideally, be more secure, have a better interface and run faster than XP, and will also have better built-in small business and search function. However, when you get a new PC, it will likely come with Vista.”

As far as an annual budget for software or hardware upgrades, there is no hard and fast rule, depending on whether you buy or lease, what you pay for internet access, whether you have in-house or outsourced support, etc. “If you’re changing your PC and software every three years, it might run about $1.500 per employee,” Ramon says. “But it’s impossible to attach any fixed costs as there are so many variables depending on your situation.”

Before you upgrade, Ray advises determining your needs and challenges before you decide to spend any money and speaking with a trusted, knowledgeable technology solutions provider. “Don’t upgrade just for the sake of upgrading,” he says. “Do it because it will improve your operations and help keep you competitive?”