Can I extend the reach of my laptop wireless signal?

I know this is posted in another section here but the last time anyone did ANYTHING in that section was over two weeks ago. I'm desperate.

Here's the deal:

I live in a house that's divided into apartments. The owner of the house has a standard G router on the top floor and says whoever lives in the house can use it. I live on the bottom floor (2 stories in all + finished basement - where I live). I have little-to-no signal on my laptop built-in wireless.

I can't exactly go into the other apartments and put a range extender in one of them, so that option is out.

So, will getting a good MIMO card (say, the Netgear Rangemax 240) help me get a longer reach/better signal to the standard G router on high or should I spring for the MIMO router and ask the owner of the house to use that instead?

Help guys!

Thanks!

Wow, ok thanks! I can try that card then. I just read that the Netgear card increases shortrange signal and throughput immensely but is mediocre on range boosting without its series router. I'll try the D Link card for now. I'll let you know how things work out!