For a NIB defense caliber home defense gun on a budget it is hard to beat a Sig SP2022. They run about $350. NIB. No manual safety but a stiff enough DA/SA trigger so it should not be a safety issue.
If you are open to used guns then I would look at the CZ75B, Beretta 92FS & 3rd Gen S&Ws. The CZ is a $400 gun and the S&W are $300 to $400 depending on configuration. I also 2nd the 92FS which is a $400 used gun.
"Its a tool box... I don't care you put the tools in for the job that's all..." Sam from Ronin
The United States is a nation of laws: badly written and randomly enforced. -Frank Zappa
Without deviation from the norm, progress is not possible.-Frank Zappa