The following are the M&A deals, rumors and chatter circulating on Wall Street for Tuesday August 7, 2012:

Home Depot Agrees To Acquire US Home Systems for $12.50/Share

The Deal:
The Home Depot (NYSE: HD) and U.S. Home Systems (NASDAQ: USHS) announced Tuesday a definitive merger agreement for The Home Depot to acquire USHS. USHS, based in Irving, Texas, is currently an exclusive provider of kitchen and bath refacing products and services as well as closet and garage organizational systems to The Home Depot.

Under the terms of the agreement, The Home Depot will acquire USHS for $12.50 per share in cash which represents an approximately 38% premium over USHS' closing price on The NASDAQ Global Market on August 6, 2012. The agreement was unanimously approved by USHS's board of directors. The acquisition is expected to close by the end of the calendar year, and is subject to approval by USHS stockholders, applicable regulatory approval and customary closing conditions.

U.S. Home Systems closed at $12.53 Tuesday, a gain of 38.30% on 132 times average volume.

SPS Commerce Acquires Edifice

The Deal:
SPS Commerce (NASDAQ: SPSC), a leading provider of on-demand supply chain management solutions, announced Tuesday it has acquired Edifice, a leading provider of cloud-based supply chain performance solutions with more than 500 customers worldwide, including many Fortune 1000 suppliers. The acquisition reinforces SPS' position as the industry's largest and fastest growing provider of cloud-based supply chain solutions, expanding the company's point-of-sale (POS) analytic offerings that enhance collaboration among retailers and suppliers to improve efficiency, reduce inventory costs and boost sales.

SPS Commerce closed at $31.89 Tuesday, a loss of 2.66% on lower than average volume.

PSS World Medical Cancels Out of Road Show Leading to Takeover Chatter

The Rumor:
Takeover rumors surfaced in PSS World Medical (NASDAQ: PSSI) when it was reported the company cancelled out of a road show involving UBS.

A PSS spokesperson told Benzinga the cancellation was due to a scheduling conflict and the some of the cancelled meetings would be conducted via conference call.

PSS World Medical closed at $21.76 Tuesday, a gain of 3.97% on 3 times average volume.

Hearing Takeover Chatter in Metalico

The Rumor:
Metalico (NYSE: MEA) was mentioned a possible takeover target by DA Davidson on Tuesday. The company referred to statements made in the company's 8-K filing regarding a possible sale of its lead fabricating segment.

Metalico closed at $2.11 Tuesday, a gain of 3.43% on 3 times average volume.

Hearing Hellman & Friedman and Bain Capital Among Bidders for Deltek

The Rumor:
Deltek (NASDAQ: PROJ) has received bids from Hellman & Friedman and Bain Capital, according to sources speaking to Reuters. The bidding process is reportedly in the second stage of due diligence.

Deltek closed at $13.51 Tuesday, a gain of 2.89% on almost 3 times average volume.