Salary negotiations are always tricky. The worst part is that while this is going on you almost have the new job but not quite. You have to get through this sticky situation to be hired. When the economy is poor that makes salary negotiation even more difficult; there may be several great candidates vying for the position. You know what you are worth, but the company may not be willing or able to pay it. Breathe easy– there is a medium ground to this problem.
The way around this problem is to be open and honest by simply telling the hiring manager that you had hoped for more money but you are willing to accept their offer in exchange for a performance review within six months of taking the job. I think this is a pretty reasonable request and most hiring managers will be happy to accept the deal. This can seal your offer in more ways than one.
Not only is the company getting you at a premium, and believe me they know what you are worth, they also have an employee that is ambitious, realistic and willing to prove himself right from the start. Being reviewed within six months also gives you a head start on any bonuses that your company may be giving out because you will have just been reviewed.
By the simple and reasonable request to review your job performance a bit earlier than they might otherwise, you are showing yourself to be a strong and decisive employee that is someone who can be worked with and is results oriented.