your dell switches should be capable of doing VRRP
hsrp is equivalent to standard vrrp protocol
the same way you configure vlans with ips and configure one ip (which is gw for workstations) to be handled by switches. for example:
vlan 10:
switch1 addr 192.168.1.252/24
switch2 addr 192.168.1.253/24
vrrp address 192.168.1.254/24, which is virtual and is monitored by both of switches (one of them is master, second - slave)