Recommendations for a USB wireless adapter?

[cave hermit]

So it seems like the network adapter built into my laptop is on the fritz, so I need to buy a USB wireless adapter as a replacement.

Thing is I don't know what to look for; I just want something that has at least the same capabilities as the built in one.

Would I go wrong buying a dual band one capable of 300 MBPS if I just want no lag online gaming, HD streaming/broadcasting, fast downloads, etc? Any features in particular I should look for?

[gct]

If it's the built-in adapter dying, why not just replace that adapter itself? I replace mine with something better even before the built-in one dies.

I recommend something like an Intel 7260. Make sure you get one in the proper physical form factor.

[cave hermit]

The main problem with that approach is that I'm an incompetent boob when it comes to fixing and modifying hardware. In fact I just broke my fightstick again the other day due to my inept attempts to install an actuator.

I'd hate to think what I would end up doing to my computer attempting to replace the adapter given I'm still figuring out how to perform that basic mechanical task.